which of the following is not an established method for finding planets in other star systems?

M = mass of the ball A = 5.0 kg

m = mass of the ball B = ?

V = initial velocity of the ball A before collision = 20 m/s

v = initial velocity of the ball B  before collision = 10 m/s

V' = final velocity of the ball A after collision = 10 m/s

v' = final velocity of the ball B after collision = 15 m/s

using conservation of momentum

M V + m v = M V' + m v'

(5.0) (20) + m (10) = (5.0) (10) + m (15)

100 + 10 m= 50 + 15 m

5 m = 50

m= 10 m/s

Answer: 5

Explanation:

Answer:

this ans is 42.85

Explanation:

i dont not explain but i hipe you get it

Answer:

The south pole of one magnet is near the south pole of the other

magnet.

The bob swings from a position of greatest displacement to the pendulum's equilibrium position in the least period of time possible is 2.4 seconds.

As a result, the mass of the bob has no effect on the basic pendulum's time period. As a result, the pendulum's period is unaffected if the bob's mass rises.

A simple pendulum's bob is moved from its equilibrium position O to a position Q that is h heights above O, and then it is let go. assuming the bob's mass to be m and time period of oscillations to be 2 s, the tension in the string, when the bob passes through O

Learn more about displacement here:

https://brainly.com/question/11934397

#SPJ4

The volume of a material is directly related to its temperature in that thermal expansion occurs with an increase in temperature while thermal contraction occurs with a decrease in temperature.

The effect of heat, when applied to a substance, is that it may result in thermal expansion or thermal contraction when heat is removed

Thermal expansion refers to the increase in the size of a material when heat is applied to the substance resulting in temperature increase. Thermal expansion may be an increase in volume, area, or length.

Thermal contraction refers to the decrease in the size of a material when heat is removed from the substance. Thermal expansion may be a decrease in volume, area, or length.

Learn more about thermal expansion and thermal contraction at: https://brainly.com/question/1166774

#SPJ1

Examples of radiation are from the burner to air that is not touching it. In the surrounding air as air currents develop. The correct options are A and B.

Radiation is the emission or transmission of energy through a material medium or across space in the form of waves or particles. Radiation is the heat transfer method in which the heat is transferred without any direct contact between the two objects.

Given that a pot of water is heated on a gas-flame stove and begins to boil. Which two transfers of thermal energy are involved?

Here the heat is transferred through the radiation in which no direct contact is there between the two objects. The two thermal heat transfer energies are from the burner to air that is not touching it and In the surrounding air as air, currents develop.

Therefore, examples of radiation are from the burner to air that is not touching it. In the surrounding air as air currents develop. The correct options are A and B.

To know more about radiation follow

https://brainly.com/question/25746629

#SPJ2

The correct answer is the Option D.

weight of volume of the water (or fluid) displaced by  the object.

What is buoyant force ?

The buoyant force is the upward force exerted on an item that is fully or partially submerged in a fluid. This upward thrust is also known as an upthrust. A body submerged partially or completely in a fluid will appear to lose weight or be lighter due to the buoyant force.

The weight of the volume of water or fluid displaced by the object and that upward buoyant force will be at the center of mass of the fluid or water that displaced.

Learn more about buoyant force from given link

https://brainly.com/question/11884584

#SPJ4

To determine the distance of the image from the mirror (part a) and the radius of curvature of the mirror (part b), we can use the mirror equation and the magnification formula for mirrors.

The mirror equation is given by:

1/f = 1/di + 1/do

where f is the focal length of the mirror, di is the distance of the image from the mirror, and do is the distance of the object from the mirror.

The magnification formula is given by:

m = -di/do

where m is the magnification of the mirror.

Given:

do = 18 cm (distance of the object from the mirror)

m = -1/2 (magnification)

a) To find the distance of the image from the mirror (di), we can rearrange the magnification formula:

di = -m * do

di = -(-1/2) * 18 cm

di = 9 cm

Therefore, the distance of the image from the mirror is 9 cm.

b) To find the radius of curvature of the mirror, we need to use the mirror equation. Since the image is real and the mirror is not specified, we assume it is a concave mirror.

Substituting the given values into the mirror equation:

1/f = 1/di + 1/do

1/f = 1/9 cm + 1/18 cm

1/f = (2 + 1)/18 cm

1/f = 3/18 cm

1/f = 1/6 cm

From the equation, we can see that the focal length (f) is equal to 6 cm. Since a concave mirror has a positive focal length, the radius of curvature (R) is twice the focal length:

R = 2 * f

R = 2 * 6 cm

R = 12 cm

Therefore, the radius of curvature of the mirror is 12 cm.

learn more about mirror ( here:

https://brainly.com/question/1160148

#SPJ11

When an object is released with an initial velocity upward, the direction of its acceleration is typically downward.

This is because the force of gravity, which acts on the object, pulls it in the opposite direction to its motion. According to Newton's second law of motion, the net force on an object is equal to its mass multiplied by its acceleration. In this case, the force of gravity acts as the net force, causing the object to accelerate downward.

The acceleration due to gravity is approximately 9.8 meters per second squared on Earth, and it acts downward towards the center of the planet. Therefore, when the object is released with an initial velocity upward, the gravitational force causes it to decelerate and eventually change direction, resulting in a downward acceleration. This downward acceleration opposes the initial upward velocity of the object until it eventually reaches its peak and starts to fall back down under the influence of gravity.

To know more about initial velocity

https://brainly.com/question/28395671

#SPJ4

Answer:

To find the work done in moving the particle from the origin to x = 2, we need to integrate the force over the given interval.

The work done (W) is calculated by integrating the force function with respect to displacement (dx) from the initial position (0) to the final position (2):

W = ∫(0 to 2) (10x³ - 5) dx

Integrating the force function, we get:

W = ∫(0 to 2) (10x³ - 5) dx = [2.5x⁴ - 5x] evaluated from 0 to 2

Now, substituting the upper limit (2) and lower limit (0) into the equation:

W = [2.5(2)⁴ - 5(2)] - [2.5(0)⁴ - 5(0)]

 = [2.5(16) - 10] - [0 - 0]

 = 40 - 10

 = 30

Therefore, the work done in moving the particle from the origin to x = 2 is 30 units of work.

Explanation:

By substituting the given values into the equations, we can find the answers for Part A and Part B

To solve this problem, we can use the formula for the interference pattern created by a diffraction grating:

d * sin(θ) = m * λ

where:

d is the spacing between adjacent slits (in this case, the inverse of the number of lines per unit length),

θ is the angle of diffraction,

m is the order of the bright fringe, and

λ is the wavelength of light.

Given:

d = 1/600 mm (spacing between adjacent slits)

λ = 510 nm (wavelength of light)

m = 1 (order of the bright fringe)

Distance between the grating and the screen = 3.2 m

Part A:

To find the distance between the two m = 1 bright fringes, we need to calculate the angle of diffraction (θ) first. Rearranging the formula, we have:

θ = sin^(-1)((m * λ) / d)

Substituting the values, we get:

θ = sin^(-1)((1 * 510 nm) / (1/600 mm))

θ = sin^(-1)(510 * 600) rad

Now, we can calculate the distance between the two m = 1 bright fringes using the small angle approximation:

y = (2 * d * tan(θ)) * 3.2 m

where y is the distance between the two m = 1 bright fringes.

Part B:

To find the number of bright fringes visible on the screen, we need to determine the maximum order of bright fringes that can be seen. The maximum order is given by:

m_max = (d * sin(θ_max)) / λ

where θ_max is the maximum angle of diffraction that can be observed on the screen.

Then, we can calculate the number of bright fringes using:

Number of bright fringes = 2 * m_max + 1

Let's calculate these values:

θ_max = sin^(-1)((m_max * λ) / d)

Number of bright fringes = 2 * m_max + 1

To learn more about fringe visit:

brainly.com/question/31387359

#SPJ11

Passive solar heating utilizes design and natural processes to capture and distribute solar energy without mechanical devices, while active solar heating uses mechanical systems to collect and distribute solar heat, requiring external energy inputs.

Passive solar heating and active solar heating are two different approaches to utilizing solar energy for heating purposes. Here's a brief explanation of each:

1. Passive Solar Heating:

Passive solar heating refers to the design and use of building materials to capture, store, and distribute solar energy without the use of mechanical or electrical devices. It relies on natural processes and elements to maximize solar gain and heat transfer. Some common passive solar heating techniques include:

Passive solar heating systems do not require active mechanical components like pumps or fans and are generally considered more energy-efficient and cost-effective.

2. Active Solar Heating:

Active solar heating involves the use of mechanical and electrical devices to collect, store, and distribute solar energy for heating purposes. It typically utilizes solar collectors, such as solar panels or solar thermal systems, to capture sunlight and convert it into heat energy. The collected heat is then transferred to a heat storage system or directly used to provide space heating or water heating. Active solar heating systems may involve pumps, fans, and controls to circulate the heated fluid or air throughout the building.

Active solar heating systems require external energy inputs, such as electricity for powering pumps or fans, and often involve more complex installation and maintenance compared to passive solar heating. However, they can offer greater control and efficiency in heating applications, especially in larger or more demanding spaces.

To know more about solar heating systems refer here :    

https://brainly.com/question/32407190#

#SPJ11            

During a winter night, when the air temperature cools to the dew point and fog is formed, the dew point remains constant. However, after the fog formation, the dew point decreases due to the depletion of moisture content in the air through evaporation and the influence of different air masses.

When the air temperature reaches the dew point, fog forms as the air becomes saturated with moisture. Initially, the dew point remains constant because the air is saturated and cannot hold additional moisture. However, as the fog persists, the moisture content decreases as water droplets evaporate and drier air mixes with the fog-laden air.

These processes contribute to a decrease in the dew point, indicating a reduction in the overall moisture content in the air. Factors such as evaporation and changes in air masses play a role in the decrease of the dew point after fog formation during winter nights.

To learn more about fog click here:

brainly.com/question/10544469

#SPJ11

Answer:

2.89 m/s²

Explanation:

From the question given above, the following data were obtained:

Radius (r) = 100 m

Velocity (v) = 17 m/s

Acceleration (a) =.?

The acceleration of a circular motion is defined by:

a = v²/r

Where:

a is the acceleration.

v is the velocity.

r is the radius.

With the above formula, we can obtain the acceleration of the car as follow:

Radius (r) = 100 m

Velocity (v) = 17 m/s

Acceleration (a) =.?

a = v²/r

a = 17²/ 100

a = 289/100

a = 2.89 m/s²

Therefore, the acceleration of the car is 2.89 m/s²

The total amount of liquid will still be 100 milliliters.

Milliliters (mL) is a unit of volume measurement that is equal to the volume of a cube that is 1 cm on each side. It is commonly used to measure liquids, such as milk, juice, or medicine. Milliliters can also be used to measure dry ingredients, such as flour or sugar. One milliliter is equal to 0.001 liters, or about 0.034 fluid ounces.

For 100 milliliters of juice, you would need 100 milliliters of fruit juice. In other words, the amount of fruit juice required to make 100 milliliters of juice is the same as the amount of juice you are starting with. This is because when you mix fruit juice with water, the total amount of liquid remains the same. So if you start with 100 milliliters of juice and then add 100 milliliters of water, the total amount of liquid will still be 100 milliliters.

To know more about milliliters click-
https://brainly.com/question/29220166
#SPJ1

A. Na+ : cation

B. NaCl : compound

C. Na : element

D. NaCl + Ag2O → AgCl + Na2O : chemical reaction

The three wavelengths that will produce standing waves on this string are 4 m, 2 m, and 1.33 m.

To find the wavelengths that will produce standing waves on a stretched string fixed at both ends, we can use the formula:

λn = 2L/n

where λn is the wavelength of the nth harmonic, L is the length of the string, and n is the harmonic number.

For the fundamental frequency (n = 1), the wavelength would be:

λ1 = 2L/1 = 4 m

For the second harmonic (n = 2), the wavelength would be:

λ2 = 2L/2 = L = 2 m

For the third harmonic (n = 3), the wavelength would be:

λ3 = 2L/3 ≈ 1.33 m

So, the three wavelengths that will produce standing waves on this string are 4 m, 2 m, and 1.33 m.

Now, for a wavelength that would not produce a standing wave pattern, we can consider the case where the wavelength is equal to the length of the string, i.e., λ = L. In this case, the wave will not produce a standing wave pattern because the ends of the string are fixed nodes, and the only possible standing wave pattern is one that has a node at each end. If the wavelength is equal to the length of the string, the only possible pattern would be a single wave with an antinode at the center, which is not a standing wave.

learn more about wavelengths: https://brainly.com/question/10750459

#SPJ1

Before we solve this, we should know this fact:

According to Newton's Law of Gravitation, the force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. The force acts along the line joining the centres of the two objects. It can be shown by this:

\(F ∝ \frac{Mm}{ {d}^{2} } \)

Now, let us check all the options.

A. As we move to higher altitudes, the force of gravity on us decreases.

This statement is true.

The force of gravity is inversely proportional to the square of distance from the centre of the earth. If, we go up the surface of the earth, the distance from the centre of the earth increases and hence the value of force of gravity decrease. So, force of gravity decreases with altitude.

B. As we move to higher altitudes, the force of gravity on us increases.

This statement is false.

We have already got the result in option A. that the force of gravity decreases with altitude. It never increases with altitude.

C. As we gain mass, the force of gravity on us decreases.

This statement is false.

The force of gravity is directly proportional to the product of the masses. So, if increase our mass, then the force of gravity will also increase and if we decrease our mass, then the force of gravity decreases.

D. As we gain mass, the force of gravity on us increases.

This statement is true.

As mentioned earlier in option C., the force of gravity is directly proportional to the product of the masses of the earth and another object. So, as we gain mass, the force of gravity on us increases.

E. As we move faster, the force of gravity on us increases.

This statement is true.

Here, we have to consider a different formula. According to Newton's Second Law,

F = ma, where F is the force, m is the mass and a is the acceleration.

In other words,

F ∝ a, i.e., force is directly proportional to acceleration.

We know, acceleration is the rate of change of velocity of an body within a time period.

So, if speed is increased, then acceleration will also be greater, which results in the increase of force. So, as we move faster, the force of gravity on us increases.

Answers:

A: As we move to higher altitudes, the force of gravity on us decreases.

D: As we gain mass, the force of gravity on us increases.

E: As we move faster, the force of gravity on us increases.

Hope you could understand.

If you have any query, feel free to ask.

Answer:

I think it's how far out the water goes from the beach before the tsunami because before tsunami usually the water goes back way behind the tide before tsunami and that tells them everything they need I think

You are checking the calibration of a treadmill at 3.5mph. when you calculate the speed, you calculate 3.5 mph. this indicates the treadmill is accurate.

The correct term to fill in the blank is "accurate." When you calculate the speed of the treadmill and obtain a measurement of 3.5 mph, it indicates that the treadmill is calibrated correctly and providing an accurate speed reading. Calibrating a treadmill involves ensuring that it accurately measures the speed at which it is moving. In this case, the treadmill's measurement aligns with the intended speed of 3.5 mph, confirming that it is properly calibrated.

By verifying the accuracy of test equipment, calibration aims to minimize any measurement uncertainty. In measuring procedures, calibration quantifies and reduces mistakes or uncertainties to a manageable level.

More on calibration: https://brainly.com/question/28325954

#SPJ11

Factors influencing incoming solar radiation include solar angle, atmospheric conditions, and surface characteristics.

Several factors influence the amount of solar radiation reaching Earth's surface. The solar angle, determined by the Earth's tilt and position in its orbit, affects the intensity of radiation. Atmospheric conditions such as cloud cover, aerosols, and pollution can scatter or absorb radiation. Surface characteristics, such as albedo (reflectivity) and vegetation, also influence the amount of incoming radiation.

The composition of incoming solar radiation consists primarily of visible light, ultraviolet (UV) radiation, and infrared (IR) radiation. Visible light is the range of wavelengths perceived by human eyes. UV radiation has shorter wavelengths and can be harmful to living organisms. IR radiation has longer wavelengths and carries heat energy.

Once solar radiation enters the atmosphere, several processes occur. Approximately 30% of incoming radiation is reflected back into space by clouds, atmospheric particles, and the Earth's surface. About 20% is absorbed by the atmosphere, including gases like ozone and water vapor. The remaining 50% reaches the Earth's surface, where it is absorbed by land, water, and vegetation, contributing to various physical and biological processes such as heating the Earth's surface, driving weather patterns, and supporting photosynthesis.

To know more about infrared (IR) radiation visit:

https://brainly.com/question/30560971

#SPJ11

Answer:

Sound

Explanation:

Answer:

When an object vibrates, it creates kinetic energy that is transmitted by molecules in the medium. As the vibrating sound wave comes in contact with air particles passes its kinetic energy to nearby molecules. As these energized molecules begin to move, they energize other molecules that repeat the process.

Explanation:

So sound waves

Explanation:

u = 1.6  

a.

a = 0.33   t = 3.6  Find v ; Using v = u + at

v = 1.6 + (0.33)(3.6) = 2.788

b.

Find s ; UsIng \(v^{2}= u^{2} + 2as\)

\((2.788)^{2}= (1.6)^{2} + 2(0.33)(s)\)

7.772944 = 2.56 + 0.66s

5.212944 = 0.66s

s = 7.8984

please give me a brainliest answer

Answer:

A.

Explanation:

If the ball has a constant accelration of 0.33  m/s3 the speed would be

3.6s.

thats how it is A.

(a)- The Inductance of the given coil is 6.10mH.

(b)- The rate of the current for which the coil will produce an emf of 70mV is 11.47 A/s

Solution: -

Given

Radius of the coil = 4.10cm

Number of turns of the coil = 480 Turns

Length of the coil = 25 cm

(a)

Inductance of the coil = µ * (N^2) * (A/L)

Inductance = 4π x 10^-7 * (480)^2 * π *( 0.041m)^2 /0.25m

Inductance = 1.256 x 10^-6 * (480)^2 * π  *(0.041)^2 /0.25m

Inductance= 1.52* 10^-3/0.25

Inductance= 6.10mH

(b)

Δi/Δt = emf/Inductance

Δi/Δt = 70 x10^-3/6.10mH

Δi/Δt= 11.47 A/s

Therefore the inductance of the coil is denoted as 6.10mH and the rate at which the current will flow the coil to give an emf of 70mV is 11.47 A/s.

To know more about inductance

https://brainly.com/question/15080085

#SPJ1

Jet aircraft naturally accelerate quickly during takeoff. There is barely any air resistance. Weight, drag, thrust, and normal force are the forces that the jet plane is subject to.

Issac Newton discovered that every action has a corresponding and diametrically opposed reaction. While an engine pushes air backward, for instance, the airplane will move forward with a similar but opposing force. In order for the plane to fly in the opposite direction, each engine expels air in one direction. Thrust is the name for this reactive force.

Jet aircraft operate under the conservation of momentum principle, which states that if the system's starting momentum was zero, therefore the system's final momentum must also be zero. Hence, the recoil of the fuel gasses ejected in the backward direction causes the jet to proceed in the forward direction.

To know more about air resistance visit:-

https://brainly.com/question/24214603

#SPJ4

Answer:

Explanation:

Incandescent bulbs are extremely inefficient because 90% of the energy is wasted as heat, with only 10% being converted to visible light. This gives incandescent bulbs a luminous efficiency rating of around 2%. Ultimately, incandescent bulbs perform better as heaters than as light sources.

Answer:

-The force of gravity must be broken into its parallel and perpendicular components.

-Acceleration can be found by dividing the net force by mass.

-Trigonometry can be used to solve for the magnitude of the force components.

-Net force must be found before acceleration can be found.

Answer:

A, B, E, F

Hope this helps!!!   :)

The significance level or α in statistics defines the probability of rejecting the null hypothesis when it is accurate. If the significance level is lower, then the risk of rejecting the null hypothesis when it is true is smaller.

We'll use a hypothesis test to address this. It will give us a proper conclusion about the concern.

Suppose the null hypothesis is \(H_0: \mu = 1\) pound

Suppose the alternative hypothesis is \(H_1: \mu < 1\) pound

Test Statistic \(T = (al - \mu) / [ s/ \sqrt {n} ]\)

where, al is the mean weight, µ is the population mean1 pound is the hypothesized value of \(\mu_s\) is the sample standard deviation n is the sample size

Here, al = 0.975 pound, n = 1 Since this is a one-tailed test, we need to use a one-tailed t-distribution with 1 degree of freedom to find the critical value. Critical value (CV) at α = 0.01 is given by CV = t0.01(1) where t0.01(1) is the 1st percentile of a t-distribution with 1 degree of freedom.

Using the t-distribution table, \(t0.01(1) = - 6.31\). The critical value is -6.31. We're looking for whether or not the hypothesis should be accepted or rejected. If the value of t is higher than the critical value (CV), we reject the null hypothesis. Otherwise, we accept the null hypothesis.

\(T = (al - \mu) / [ s/ \sqrt {n} ]= (0.975 - 1) / [ s/ \sqrt{1}]= -0.025 / s\)

The mean weight of bread loaves produced at the bakery is 1 pound, but the mean weight of an SRS of bread loaves produced at the bakery is 0.975 pound. Thus, the hypothesis will be rejected if the weight of the loaves in the sample is lower than the mean weight of loaves in the bakery. The test statistic is negative. This indicates that the observed value (0.975) is lower than the hypothesized value (1.0). Since it is only a one-tailed test, the P-value for a t-distribution with 1 degree of freedom can be calculated using the following formula:

P-value = P (T ≤ t)where T is the t-distribution with n - 1 degrees of freedom. The P-value at T = - 0.79 (from the t-table) is 0.4289. Since this value is higher than the significance level of 0.01, we can't reject the null hypothesis. Hence, there is no proof of insufficient bread weight.

Therefore, we accept the null hypothesis that the average weight of loaves of bread produced at the bakery is 1 pound.

Learn more about hypothesis test here:

https://brainly.com/question/4232174

#SPJ11

If the voltage source or EMF is removed from a conductor, the electron flow within the conductor will eventually stop.

This is because the voltage source creates an electric field that causes the free electrons in the conductor to move, creating an electric current. When the voltage source is removed, the electric field disappears, and the free electrons in the conductor will no longer have a driving force to move them. As a result, the electrons will begin to lose energy and eventually come to a stop, leading to the cessation of the electric current.

It's worth noting that the time it takes for the electron flow to stop depends on various factors such as the resistance of the conductor, the capacitance of the circuit, and the amount of charge stored in any capacitors present in the circuit.

To learn more about conductor follow the link:

https://brainly.com/question/14405035

#SPJ4

Answer:

.

Explanation: