At any given time in space, how much of
the moon is lit by the sun?
PLEASE ANSWER QUICKLY!!!
Answers
Answer: 50%
Explanation: The sun and the moon go around Earth and The sun is way bigger than the moon so 50% of the sun lights up the moon at night
Answer:
50%
Explanation:
Related Questions
what resistance should be added in series with a 3.0 h inductor, for an lr circuit with a time constant of 4.0 ms?
Answers
The resistance added should be 0.75 kΩ.
Inductance can be defined as;
The property of an electric conductor or circuit that causes an electromotive force to be generated by a change in the current flowing.
Resistance can be defined as;
Resistance is a measure of the opposition to current flow in an electrical circuit.
So according to the question the data is
L = Inductance = 3 H
τ= Time constant = 4 m s
R = Resistance
The formula used for solution is
τ =\(\frac{L}{R}\)
Firstly we will separate R from the formula as follows;
R = L / τ
Now put the value given in the question
R = 3 / 4× 10⁻³
R = 750 Ω
R = 0.75 kΩ
So the resistance added should be 0.75 kΩ
Your question is incomplete most probably your full question was
What resistance should be added in series with a 3.0-H inductor to complete an LR circuit with a time constant of 4.0 m s? A)0.75 k Ω Β) 12 Ω C) 0.75 Ω D) 2.5 Ω
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Will the temperature of a plastic or wooden spoon be more than the temperature of a metal spoon if you put both of these in a cup of boiling hot water after 5 minutes? PLZ HELP, will mark brainliest
Answers
Answer:
no
Explanation:
the metal spoon would be higher temperature
Answer:
Yes
Explanation:
Melissa was putting on her makeup when she accidentally ran into a stopped car at a red light, 11. 01 m in front of her. Melissa's 1,219 kg car was moving at 8. 133 m/s and came to a complete stop in 0. 3994 seconds. What is the magnitude of the force that stopped Melissa's car?
a
2. 970E4 N
b
1. 535E4 N
c
1. 934E4 N
d
4. 550E4 N
e
4. 295E4 N
f
3. 400E4 N
g
3. 821E4 N
h
2. 482E4 N
Answers
The required magnitude of the force that stopped Melissa's car is 118608.7 N.
What are 1st 2nd and 3rd laws of motion?According to the first law, unless a force acts on an object, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction forces upon one another.
According to question:An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.
Given,
speed=8.133 m/s
final velocity=0 (due to impact)
time=0.3994 seconds
distance=11.01m
Then,
S = ut + (at^2)/2
a = 2(s - ut)t^2
a = 97.3 m/s^2
So,
Force = ma
Force = 1219(97.3)
Force = 118608.7 N
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An object and a converging lens are used to create an image at some location. There are two possible cases.
Case 1) the object is outside the focal length of the lens; or
Case 2) the object is between the lens and its focal point.
- If you place a screen at the image location as predicted by the thin lens equation, what would you expect to see on the screen for Case 1?
Answers
When the object is outside the focal length of the converging lens, the image formed will be real, inverted, and located on the opposite side of the lens compared to the object.
If a screen is placed at the image location as predicted by the thin lens equation, the expected result on the screen would be a focused, real, inverted image of the object. The image will be smaller in size compared to the object. The exact characteristics of the image, such as its size and position, can be determined using the thin lens equation and the magnification equation. The thin lens equation is given by: 1/f = 1/d_o + 1/d_i, where f is the focal length of the lens, d_o is the object distance (distance between the object and the lens), and d_i is the image distance (distance between the image and the lens). By solving the thin lens equation, the image distance and other properties of the image can be determined. However, in general, for Case 1, the image will be real, inverted, and smaller in size compared to the object when observed on the screen.
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A lightbulb is a kind of lever true or false
Answers
False. It is incorrect to consider a lightbulb as a kind of lever.
A lightbulb is not a kind of lever. A lever is a simple machine that consists of a rigid bar or plank that rotates around a fixed point called a fulcrum. Levers are used to transmit and amplify forces or to change the direction of applied forces. They work based on the principle of torque, where a force is applied at a certain distance from the fulcrum, creating rotational motion.
On the other hand, a lightbulb is an electrical device that produces light when an electric current passes through it. It consists of a filament or a gas-filled chamber enclosed in a glass bulb. The functioning of a lightbulb is based on the principles of electrical resistance and thermal radiation, rather than the mechanical principles of levers.
While levers and lightbulbs both exist as objects, they serve entirely different purposes and operate on different principles. Levers are used for mechanical advantage and force amplification, while lightbulbs are used for generating light through the conversion of electrical energy.
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a key difference between the protoplanets that formed in the outer solar system and those that formed in the inner solar system was that
Answers
A key difference between the protoplanets that formed in the outer solar system and those that formed in the inner solar system was that they were composed of different types of material.
What is a protoplanet?Protoplanets are early-stage planets that are still forming, as well as the residual planetesimals that made them. They are believed to have formed in the early solar system's planetesimal disk, which was composed of gas and dust.
In the inner solar system, rocky fragments and dust grains with higher melting points accumulated to produce rocky protoplanets, whereas in the outer solar system, where temperatures were colder, volatile materials like water and methane condensed and formed the cores of the protoplanets instead of rocky material.
These protoplanets then drew more material from the surrounding planetesimal disk and eventually formed the planets we see today.
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a tennis ball mashine fires aball vertically upward at time t=0 at 19.6 m/s assume the air resistance is negligible and take g=9.8m/s^ calculate the displacement and velocity of the ball at t=1.0s,2.0s,3.0s and 4.0s
Answers
Answer:
See the answers below.
Explanation:
To solve this problem we must use the following equation of kinematics.
\(y=y_{o}+v_{o}*t+0.5*g*t^{2}\)
where:
y = final elevation [m]
yo = initial elevation = 0
vo = initial velocity = 19.6 [m/s]
t = time required [s]
g = gravity acceleration = 9.81 [m/s²]
Now we can replace the different times in the equation above.
For t = 1 [s]
\(y=0+(19.6*1)-0.5*9.81*(1^{2} )\\y = 14.7 [m]\)
For t = 2 [s]
\(y=0+(19.6*2)-0.5*9.81*(2^{2} )\\y = 19.58 [m]\)
For t = 3 [s]
\(y=0+(19.6*3)-0.5*9.81*(3^{2} )\\y = 14.7 [m]\)
For t = 4 [s]
\(y=0+(19.6*4)-0.5*9.81*(4^{2} )\\y = -0.08 [m]\)
We can see that the sign of gravitational acceleration is negative, since it points in the opposite direction to the motion of the launch.
Note when the time is equal to 4 seconds we see that the distance is 0, ie the tennis ball has reached its maximum height and begins to descend.
A slingshot consists of a light leather cup, containing astone, that is pulled back against two parallel rubber bands. Ittakes a force of 15 N to stretch either one of these bands 1.0cm.
(a) What is the potential energy stored in the two bands togetherwhen a 50-g stone is placed in the cup and pulled back 0.20 m fromthe equilibrium position?
(b) With what speed does the stone leave the slingshot?
Answers
The answer depends on the force-distance relationship for stretching the bands and the displacement of the stone from the equilibrium position.
The force required to stretch one rubber band by 1.0 cm is 15 N. Therefore, the force required to stretch it by 0.20 m is (15 N/0.01 m) * 0.20 m = 300 N.
The potential energy stored in each rubber band is given by the formula PE = (1/2) * k * \(x^2\), where k is the spring constant and x is the displacement. Since we have two rubber bands, the total potential energy stored in the two bands together is PE = 2 * (1/2) * k * \(x^2\).
Substituting the values, where k = 300 N/m and x = 0.20 m, we can calculate the potential energy:
PE = 2 * (1/2) * (300 N/m) * \((0.20 m)^2\) = 12 J.
Therefore, the potential energy stored in the two bands together when the stone is pulled back 0.20 m is 12 J.
(b) To determine the speed at which the stone leaves the slingshot, we can use the principle of conservation of mechanical energy. At the point of release, all the potential energy stored in the bands is converted into kinetic energy of the stone.
The potential energy stored in the bands is given by PE = (1/2) * m * \(v^2,\) where m is the mass of the stone and v is its velocity.
Equating the potential energy to the initial potential energy (12 J) and solving for v, we have:
(1/2) * m * \(v^2\) = 12 J.
Substituting the values, where m = 50 g = 0.05 kg, we can solve for v:
(1/2) * (0.05 kg) * \(v^2\) = 12 J.
\(v^2\) = (12 J) / (0.025 kg) = 480 \(m^2/s^2.\)
Taking the square root of both sides, we find v ≈ 21.9 m/s.
Therefore, the stone leaves the slingshot with a speed of approximately 21.9 m/s.
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terms used to measure motion
Answers
Answer:
velocity term
Explanation:
Answer:velocity term
Explanation:
What does it mean if the gravitational potential energy of an Earth-apple system is 10J?10J? (a) Someone did 10J10J of work lifting the apple. (b) Earth did negative work when someone was lifting the apple. (c) A 100−�100−g apple is 10m10m above the ground. (d) Parts (a) and (c) are both correct. (e) We need more information about the coordinate system and the object.
Answers
The gravitational potential energy of an Earth-apple system is 10 J, a) it means someone did the 10 J of work in lifting the apple and c) A 100 gm apple is 10 m above the ground.
Gravitational potential energy is the energy possessed by an object due to its position relative to the ground surface. It is formulated as:
P = mgh
Where m is the mass of the object, g is the acceleration due to gravity of Earth, and h is the height of the object above ground level. So if someone lifts the apple of 100 gm mass, up to 10 m, then the work done by the person will be the equal to the potential energy of the apple at 10 m height.
m = 100 gm = 0.1 kg
g = 10 m/s²
h = 10 m
P = 0.1 × 10 × 10
P = 10 j
Hence the option (d) is correct.
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The intensity of the distributed lood acting on the beams 25 kN/m.) Determine the magnitude of reaction at Express your answer to three significant figures and include the appropriate units O ? N Value Units Submit Request Answer Figure Part 6 1 of 1 Delane te zand y components of reaction all sing scalar notation Express your answers using three significant figures separated by a comma HV AED vec ?
Answers
The magnitude of reaction at the beam due to the distributed load of 25 kN/m is 625 N.
What is the magnitude of reaction to the distributed load?The magnitude of reaction at the beam can be determined by calculating the total force exerted by the distributed load. In this case, the distributed load is given as 25 kN/m. To find the magnitude of reaction, we multiply the distributed load by the length of the beam.
Therefore, the magnitude of reaction is 25 kN/m multiplied by the length of the beam in meters. By performing the calculation, we obtain the value of 625 N as the magnitude of reaction at the beam due to the distributed load. This represents the total force exerted by the distributed load on the beam.
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Which could most likely describe the three surfaces?
Surface 1 is ice, Surface 2 is gravel, and Surface 3
is blacktop.
Surface 1 is gravel, Surface 2 is ice, and Surface 3
is blacktop.
Surface 1 is blacktop, Surface 2 is gravel, and
Surface 3 is ice.
Surface 1 is blacktop, Surface 2 is ice, and Surface
3 is gravel.
Answers
Answer:
Surface 1 is blacktop, Surface 2 is gravel, and Surface 3 is ice.
Explanation:
Hope this helps! :]
Answer:
C. Surface 1 is blacktop, Surface 2 is gravel, and
Surface 3 is ice.
Explanation:
A container on the highway with a round hemispherical end is considered a(n) _________ pressure container.
Answers
Answer:
high pressure container
A container on the highway with a round hemispherical end is considered a(n) High-pressure container.
What is pressure ?Pressure (symbol: p or P) stands the force involved perpendicular to the surface of an object per unit area over which that force exists distributed. 445 Gauge pressure (even spelled Gage pressure) exists the pressure comparable to the ambient pressure.
Various units exist utilized to represent pressure. Some of these derive from a unit of force separated by a unit of area; the SI unit of pressure, the pascal (Pa), Pressure may also be represented in terms of standard atmospheric pressure; the atmosphere (atm) stands equivalent to this pressure, and the tore exists described as 1⁄760 of this.
Hence, A container on the highway with a round hemispherical end is considered a(n) High-pressure container.
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A bar magnet with its north pole pointing downward is falling toward the center of a horizontal conducting ring. As viewed from above, is the direction of the induced current in the ring counterclockwise
explain why please
Answers
The magnet is moving down with the north pole downward, and during the transition, there will be an increase in magnetic flux through the ring, which will produce the induced current through the ring.
When the bar is moved toward loop the flux will increase and the induced current will counter this flux.
The induced current tries to oppose the change in magnetic flux and this is possible just if the current direction is counterclockwise.
Result: The current direction is counterclockwise
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A 0.2 kg baseball is pitched with a velocity of 40 m/s and is then batted to the pitcher with a velocity of 60 m/s. What is the magnitude of change in the ball's momentum?
Answers
Answer:
The magnitude of change in the ball's momentum is 4 kgm/s
Explanation:
Given;
mass of the ball, m = 0.2 kg
initial velocity of the ball, u = 40 m/s
final velocity experienced by the ball, v = 60 m/s
Therefore, the change in momentum of the ball is given as final momentum minus initial mometum;
ΔP = mv - mu
ΔP = m(v-u)
ΔP = 0.2 (60 - 40)
ΔP = 4 kgm/s
Therefore, the magnitude of change in the ball's momentum is 4 kgm/s
The magnitude of the change in the momentum of the baseball is 4 kgm/s.
To solve the problem above we need to use the formula of change in momentum
Change in momentum: This can be defined as the product of the mass and the change in velocity of a body.
The formula of change in momentum is
M = m(v-u).................. Equation 1
Where M = change in momentum, m = mass of the baseball, v = final velocity of the baseball, u = initial velocity of the baseball.
From the question
Given:
m = 0.2 kg v = 60 m/s u = 40 m/sSubstitute these values into equation 1
M = 0.2(60-40) M = 0.2(20) M = 4 kgm/sHence, The magnitude of the change in the momentum of the baseball is 4 kgm/s
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Water can’t stick to itself. True or false?
Answers
Answer:ture
Explanation:
WHATS THE ANSWER HELP!!
Answers
5m I think,maybe, not a 100% sure die
Answer:
5m i think
Explanation:
WHATS THE ANSWER HELP!!
The density of a substance is 3.4 g cm-3. Its relative density relative to another substance is 2.0. what is the density of the second substance?
Answers
Answer:
1.7 g/cm³
Explanation:
Given that:
Density of substance = 3.4 g/cm³
Relative density to another substance = 2
Density of second substance=?
Let density of second substance = x
Relative density = density of substance / density of second substance
Relative density = density of substance / x
2.0 = 3.4g/cm³ / x
2 * x = 3.4 g /cm³
x = 3.4 g/cm³ ÷ 2
x = 1.7 g/cm³
The longest cave system in the world is the
Mammoth Cave system in Central Kentucky.
It has a mapped length of 348 miles.
Find its length in kilometers. 1 mi = 1.609
km = 5280 ft.
Answer in units of km.
Answers
Answer:
________________
560 kilometers
I think this is correct.
________________
Answer:
The answer of the question is = 560.052
Kilometer.
if two joggers have similar levels of commitment and purpose but one is clearly better at jogging than the other, what is the MOST likely difference between the two joggers? A. fitness goals B. body composition C. motivation D. body positivity
Answers
Answer:
Fitness Level
Explanation:
The most likely difference between the two joggers who have similar levels of commitment and purpose but one is clearly better at jogging than the other is their fitness level. Fitness level refers to the level of physical fitness and conditioning of an individual, which is usually determined by their exercise habits, lifestyle, and genetics. A person with a higher level of fitness will generally be able to perform physical activities, such as jogging, more easily and with greater proficiency than a person with a lower level of fitness. Therefore, the jogger who is better at jogging is likely to have a higher level of fitness than the other jogger.
While factors such as body composition, motivation, and body positivity can also impact jogging performance, they are less likely to be the most significant difference between the two joggers in this scenario.
Answer:
The most likely difference between the two joggers is
B. body composition.
Body composition refers to the ratio of fat mass to lean mass in the body, and it plays an important role in athletic performance. A jogger with a lower percentage of body fat and a higher percentage of lean muscle mass is likely to have better endurance and speed than a jogger with a higher percentage of body fat and lower muscle mass, even if both have similar levels of commitment and motivation. Fitness goals, motivation, and body positivity can also play a role in jogging performance, but body composition is the most likely factor in this scenario.
When an air rocket is fired vertically into the air, where is the velocity the greatest? Where is the rockets velocity zero? What is the acceleration of the rocket during its flight?
Answers
Given that an air rocket is fired vertically into the air, lets solve for the following:
(b), At the highest height, the velocity of the rocket will be zero
The rocket's velocity will be zero when it gets to its highest height.
(c) The acceleration of the rocket during its flight will be the negative of the acceleration due to gravity.
This is because, as the rocket goes up, the force of gravity acts on the rocket.
Therefore, the acceleration of the rocket is -9.8 m/s².
ANSWER:
(b) The velocity is zero when it get's to its highest point.
(c) -9.8 m/s²
Do you think the mass of an object greatly affects the coefficient of friction?
Answers
Answer:
no it doesn't
Explanation:
3. Since Aspeon is not expected togrow, Emily believes that the following equations can be used in the valuation analysis: (1) S=[EBIT−kd(D)](1−ks)
(2) V=S+D
(3) P=(V−D0)/n0
(4) n1=n0−D/P
(5) VL=VU+TD
Answers
The equations mentioned by Emily in the valuation analysis for Aspeon are as follows:
1) Equation (1): This equation represents the value of equity (S) and calculates it based on the EBIT (earnings before interest and taxes), the tax shield provided by debt (D), and the required return on debt (kd) and equity (ks). It implies that the value of equity is equal to the adjusted EBIT after deducting the tax shield from debt.
2) Equation (2): This equation calculates the total enterprise value (V) by adding the value of equity (S) and debt (D). It represents the total worth of the company, considering both equity and debt.
3) Equation (3): This equation calculates the price per share (P) by dividing the total enterprise value (V) minus the initial debt (D0) by the number of shares (n0). It represents the price per share based on the valuation of the company.
4) Equation (4): This equation calculates the new number of shares (n1) by subtracting the dividend (D) from the initial number of shares (n0) divided by the price per share (P). It represents the adjusted number of shares after the payment of dividends.
5) Equation (5): This equation calculates the levered value (VL) by adding the unlevered value (VU) with the tax shield value (TD). It represents the value of the company after considering the tax advantages of debt.
These equations provide a framework for valuation analysis, considering factors such as earnings, taxes, debt, and equity. They help assess the value and financial implications of Aspeon's growth prospects.
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Communication satellites are often put in a geo-synchronous orbit, meaning they have an orbital period of 24 hours and stay over the same spot above the equator at all times. Given that the Earth has a mass of 5.97 x 1024 kg and a radius of 6.37 x 106 meters, determine the following: a. What is the orbital height of the satellite relative to the surface of the Earth
Answers
Answer:
h = 35857 km
Explanation:
A geosynchronous orbit can be defined as circular orbit which lies on the Earth's equatorial plane and follows the direction of the Earth's rotation in a period that's equal to the Earth's rotational period and thereby appearing motionless, at a fixed position in the sky relative to the ground observers.
We are given;
Radius of earth(R) = 6.37 x 10^(6) m
Mass of earth (Me) = 5.97 x 10^(24) kg
Gravitational constant = 6.67 × 10^(-11) m³/kg.s²
The earth has a rotational period of 24 hours per day. This gives in seconds
T = 24 × 60 × 60
T = 86400 s
Let's make the height of the orbit from Earth's surface to be h
Also, let ω be the uniform angular velocity in rad/s with which the satellite rotates in the geosynchronous orbit
Now, equating the centripetal force with the gravitational force gives us;
mω²(R + h) = G•Me•m/(R + h)²
m will cancel out. Also ω can be written as 2π/T
Thus,we now have;
(R + h) = ∛(G•Me•T²/(4π²))
Plugging in the relevant values, we have;
(R + h) = ∛(6.67 × 10^(-11) × 5.97 x 10^(24) × 86400²/(4π²))
(R + h) = 42227 Km
Since R = 6.37 x 10^(6)m = 6370 km
Thus;. h = 42227 - 6370 = 35857 km
3. Find the lateral area of the pyramid to the nearest whole number.
Slant: 40 m
Width: 60 m
Length: 60m
Answers
Answer:
To find the lateral area of a pyramid, we need to calculate the area of each triangular face and then add them together. The lateral area does not include the area of the base.
Explanation: Given the width and length of the base of the pyramid, we can calculate the height using the Pythagorean theorem. The height of the pyramid is the same as the height of each triangular face.
Using the Pythagorean theorem:
height² = slant² - (1/2 × width)²
height² = 40² - (1/2 × 60)²
height² = 1600 - 1800
height = √200
height = 10√2
The area of each triangular face can be calculated as:
area of triangle = (1/2 × base × height)
area of triangle = (1/2 × 60 × 10√2)
area of triangle = 300√2
Since the pyramid has four triangular faces, the total lateral area is:
lateral area = 4 × area of triangle
lateral area = 4 × 300√2
lateral area ≈ 1,695
Therefore, the lateral area of the pyramid is approximately 1,695 square meters, to the nearest whole number.
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What the difference between a fact or a law?
Answers
Answer:
Facts are simple, basic observations that have been shown to be true. Laws are generalized observations about a relationship between two or more things in the natural world.
Explanation:
The law can be based on facts and tested hypothesizes, according to NASA.
how do we use visible light to detect chemicals in other atmospheres?
Answers
Simply put different aspects of the electromagnetic spectrum reflect differently. Certain chemicals will absorb different frequencies of light while reflecting others.
help me please Am I correct???
Answers
Answer:
They both experienced the same force as they weigh the same amount
Newtonian physics
Explanation:
Suppose you mix an unknown clear liquid with water and the added liquid mixes completely with the water so that no layers are visible. what is most likely true about the unknown liquid?
Answers
polar liquid is most likely true about the unknown liquid.
What exactly are polar liquids?However, in polar liquids, the uneven charge distribution in the liquid's molecules means that the attractive and repulsive forces do not balance out, and the liquid deflects when exposed to an electric field.Polar Molecule Examples
Water is a polar molecule (H2O)Because oxygen atoms have a higher electronegativity than other atoms in the molecule, they attract electrons, making ethanol polar. Ammonia (NH3) is polar.SO2 (sulfur dioxide) is polar.H2S (hydrogen sulfide) is polar.Water (H2O), like hydrogen fluoride (HF), is a polar covalent molecule. When you look at a diagram of water you can see that the two hydrogen atoms are not evenly distributed around the oxygen atom.To learn more about polar liquids refer to
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Tech A says that pushing on the brake pedal stops the vehicle by converting chemical energy into thermal
energy. Tech B says that brake pedal pressure is transmitted to the brakes hydraulically. Who is correct?
Answers
Tech B is correct. The brake pedal pressure is transmitted to the brakes hydraulically.
How does brake pedal stop a vehicle?The energy of the pads clamping against the rotors and brake shoes pushing against drums generates friction and heat.
This heat-friction, along with friction generated between the tire and road surface, slows rotor and axle rotation and ultimately brings the car to a stop.
Thus, Tech B is correct. The brake pedal pressure is transmitted to the brakes hydraulically.
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