Would the phases of the moon be affected if the moon did not make one rotation for each revolution of earth. Explain .

If a type ii cepheid has an apparent magnitude of 12 and a pulsation period of 3 days. the  approximate distance to this cepheid variable star is 0.14 parsecs.

To determine the distance to a Cepheid variable star, you can use the period-luminosity relationship, which states that the intrinsic brightness (luminosity) of a Cepheid is directly proportional to the length of its pulsation period. In other words, the longer the period, the brighter the Cepheid.

To use this relationship to determine the distance to a Cepheid, you need to know its apparent magnitude (how bright it appears from Earth) and its pulsation period. You also need a reference value for the luminosity of a Cepheid with a known period, which can be obtained from observations of nearby Cepheid variables.

Using these values, you can calculate the distance to the Cepheid using the following formula:

distance = 10 ^ ((reference luminosity - apparent magnitude + 5) / 5)

Plugging in the values you provided, we get:

Distance = 10 ^ ((-2.5 - 12 + 5) / 5)

= 10 ^ (-9.5 / 5)

= 10 ^ (-1.9)

= 0.14 parsecs

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Answer: The resultant displacement vector is 5.6km

The resultant displacement vector of the hiker is equal to 5.6 km.

The distance can be described as the total length traveled by an object and is a scalar quantity with only magnitude. The distance should be always positive.

The displacement of an object can be described as the shortest length between two points. The displacement can be considered as a vector quantity with direction & magnitude. The displacement can be +ve, -ve, or zero and can be changed with time.

Given, a hiker moves 5.0 km along AB in the North and then 2.5 km west along BC.

The length (AC) is the resultant displacement that can be calculated by using Pythagoras' theorem:

AC² = AB² + BC²

AC² = (5.0)² + (2.5)²

AC² = 25 + 6.25

AC = 5.59 km ≈ 5.6 km

Therefore, the displacement of the hiker is 5.6 Km.

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Answer:

supply

Explanation:

supply is how much product that you have

Answer:

Attract

Explanation:

The balloons attract each other due to electrons.

Hope this helps :)

Answer:

divide the distance by the time and get average velocity in units of s. the detection to the left

Answer:

The atmosphere of planets will block or enable heat coming from the sun

Answer:

c.

Explanation:

Given that:

The initial speed of the projective v = 13.2 m/s

The angle θ = 37.0°

At the highest point, the particle will comprise only the horizontal component of the speed because the vertical component will be zero.

So,

the horizontal component \(v_x = vcos \theta\)

\(v_x = 13.2 \ m/s (cos 37^0)\)

\(\mathsf{v_x = 10.5 \ m/s}\)

Answer: An jack makes changing a tire easier because it lifts up the car to get the tire off of the ground.

Explanation:

Answer:

130.7 N

Explanation:

Answer:

William Gilbert

Explanation:

first described the Earth as a giant dipole magnet 400 years ago. But, as Rod Wilson recounts, he did far more than this.

Answer:

william gilbert

Explanation:

first described the Earth as a giant dipole magnet 400 years ago. But, as Rod Wilson recounts, he did far more than this.

A miniature quadcopter is located at xi = −1.75 m and yi = 2.70 m at t = 0, so the x-coordinate of the quadcopter's position at t = 2.10 s is -0.185 m, and the y-coordinate is -3.175 m.

The equation that is used here is the kinematic equations to find the position of the quadcopter at time t,

x = xi + vav, x × t

y = yi + vav, y × t

Substituting the given values, one can get:

x = -1.75 m + 1.70 m/s × 2.10 s = -0.185 m

y = 2.70 m - 2.50 m/s × 2.10 s = -3.175 m

Hence, the x-coordinate of the quadcopter's position at t = 2.10 s is -0.185 m, and the y-coordinate is -3.175 m.

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Answer:

The greater weight increases the terminal velocity by acting as an extra force against gravity and air resistance.

Answer:

True

Explanation:

Answer:

paying too much on the black market instead of getting a prescription

Explanation:

i just took the quiz

Answer:

Paying too much on the black market instead of getting a prescription

Explanation:

The rest of the options are risks associated with using legal drugs without medical supervision.

A VfL (Vertical Field LED) backlighting system is commonly used in LCD (Liquid Crystal Display) televisions.

LCD TVs rely on a backlight to illuminate the liquid crystal layer, which controls the passage of light to create the visual image. The VfL technology is a specific type of LED backlighting arrangement used in certain LCD TV models. In a VfL backlighting system, the LEDs (Light-Emitting Diodes) are positioned vertically along the edges of the LCD panel.

The light emitted by these LEDs is directed across the panel using light guides or optical films, illuminating the liquid crystal layer uniformly. One advantage of VfL backlighting is its ability to provide consistent illumination across the LCD panel, reducing any potential inconsistencies in brightness or color uniformity. The vertical orientation of the LEDs allows for more precise control over light distribution, improving overall image quality.

Additionally, VfL backlighting offers potential advantages in terms of power efficiency. By selectively dimming or turning off specific zones of LEDs, local dimming techniques can be employed to enhance contrast and black levels, resulting in improved picture quality while conserving energy. It's important to note that VfL backlighting is just one of several backlighting technologies available for LCD TVs.

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Answer:

It can travel in various wavelengths. brainliest?

Explanation:

The evidence that reveals about the light is that  It can travel in various wavelengths.

It is the wave property that should be blending of the wave related to the corners.

At the time when the wave is bending so it passed via the openings.

Also, the light diffracted via the small slits and it should be shown to arise in the water waves and the sound waves.

hence, the first option is correct.

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A. All of the forces acting on an object

Explanation:

APEX

True. Fossil fuels are common, but growing consensus among scientists and economists that hydroelectric power is a better alternative for electricity.

Hydroelectric power, which generates electricity by harnessing the energy of moving water, has a number of advantages over fossil fuels. For one, it is a renewable energy source, meaning that it is replenished naturally and won't run out like fossil fuels will. Additionally, hydroelectric power is relatively low-cost and produces minimal greenhouse gas emissions compared to fossil fuels.

However, hydroelectric power is not a viable option everywhere. It requires access to a water source with enough flow and drop to generate significant energy, making it primarily useful in areas with abundant water resources such as rivers, dams or reservoirs. In such locations, hydroelectric power can be a more efficient and sustainable method for generating electricity than burning fossil fuels.

Overall, the best method for generating electricity will depend on a variety of factors, including the geography, availability of resources, and environmental considerations. However, given its many benefits, hydroelectric power should certainly be considered as an alternative to fossil fuels where conditions are favorable.

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The correct answer is :

In octal,

Decimal         16  17   18  19  20  21  22 23  24  25  26  27  28  29  30 31  32

Octal             20  21  22  23 24  25 26 27  30  31   32  33  34  35  36 37  40

Hexadecimal 10   11   12  13  14   15  16  17   18   19   1A   1A   1C  1D  1E  1F  20

Decimal   8  9  10 11  12 13  14  15  16  17  18  19  20 21  22  23 24 25 26 27 28

Base13     8  9  A  B  C  10  11  12  13   14  15  16  17  18  19   1A  1B  1C 20 21 22

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The level of water in the tank is rising at a rate of approximately 102.2 feet per hour.

To handle this issue, we need to apply the standard of security of mass, which communicates that the mass of a shut structure stays steady for a really long time. For this present circumstance, we can consider the tank a shut structure, and the water gushing in through the two lines as the mass data. The rate at which the level of water is climbing in the tank is comparable to the net stream speed of water into the tank isolated by the cross-sectional locale of the tank. Since the tank is tube formed, its cross-sectional district is given by \(πr^2\), where r is the compass of the tank. In this manner, we can make:

dV/dt = (400 + 200) woman/h = 600 woman/h

where dV/dt is the rate at which the volume of water in the tank is extending. Changing this over totally to cubic feet every hour, we get:

dV/dt = (600 woman/h)/(7.48 woman/\(ft^3\)) = 80.21 \(ft^3/h\)

The cross-sectional district of the tank is given by:

A =\(πr^2 = π(6/12 ft)^2\)= 0.785 \(ft^2\)

Consequently, the rate at which the level of water is rising in the tank is:

dh/dt = dV/dt/A = (80.21 \(ft^3/h\))/(0.785 \(ft^2\)) = 102.2 ft/h

Consequently, the level of water in the tank is expanding at a speed of generally 102.2 feet every hour.

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Yes, the force of the engine does work on the car as it accelerates the car forward. Work is defined as the transfer of energy that occurs when a force is applied over a distance, and in this case, the force of the engine is causing the car to move, so it is doing work.

As the car gains speed, its kinetic energy increases, which means it has more energy of motion. Kinetic energy is defined as one-half of the mass of an object times its velocity squared, so as the car's speed increases, so does its kinetic energy.

The gravitational potential energy of the car will remain constant as long as it stays on a horizontal road, assuming there is no change in elevation. Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, and since the car's position relative to the ground is not changing, its gravitational potential energy will remain constant.

The tractive force of the engine may change depending on the speed of the car and the resistance to motion that the car is encountering. As the car speeds up, the air resistance acting on the car will increase, which will require more force from the engine to maintain the same acceleration. Additionally, if the road surface is rough or there are inclines, the tractive force required to maintain the same speed or acceleration will also increase.

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Without accelerating, it is feasible to ascertain a car's speed before the brakes are used. The magnitude of the shift in location depends on an object's speed in kinematics and daily use.

Given that it calculates how much its position has changed in respect to time, it is a scalar quantity. The average speed of an object during a time interval is calculated as the distance travelled in that time interval divided by the interval's duration. The maximum size and direction of an object are referred to as magnitude in physics. Magnitude is a factor that is shared by both vector and scalar values. We are aware that scalar quantities are those that only have a single property—magnitude.

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Answer:

The motion of a simple pendulum is very close to Simple Harmonic Motion (SHM). SHM results whenever a restoring force is proportional to the displacement, a relationship often known as Hooke's Law when applied to springs. Where F is the restoring force, k is the spring constant, and x is the displacement.

where θ is the angle the pendulum makes with the vertical. For small angles, sin(θ)∼θ, which would then lead to simple harmonic motion. For large angles, this approximation no longer holds, and the motion is not considered to be simple harmonic motion.

Explanation:

step 1. since the magnification is negative this means the object is real and is farther away from the lens than the focal point

step 2. 1/f = 1/o + 1/i where f is the focal length, o is the object distance from the lens and i is the image distance from the lens

step 3. 1/12 = 1/o + 1/i, -i/o = -2.5 (these are our 2 equations or system

step 4. 1/12 = 1/o + 1/2.5o

step 5. o = 12 + 12/2.5 = 16.8cm

step 6. i = 2.5o = 2 5(16) = 42cm

Answer:

The average blood speed is 0.39 m/s

Explanation:

According to Poiseuille’s law, the volume flow rate, Q (m³/s) of a fluid of

viscosity η through a tube or pipe of radius r and length L is:

Q = πr⁴ΔP/8ηL

where ΔP is the change in pressure or pressure difference of the fluid; L is length of the pipe

Also, the volume flow rate, Q, is related to the average velocity v, by the formula:

Q = Av

where A is the cross-sectional area of the pipe; A = πr²

Q = πr²v

Thus, the Poiseuille’s becomes: πr²v = πr⁴ΔP/8ηL

v = r²ΔP/8ηL

From the given values:

r = 2.5 mm = 0.0025 m

L = 15 cm = 0.15 m

ΔP = 380 Pa

η = 5 * 10⁻³ Pa.s

substituting the given values in the equation

v = {(0.0025)² * 380} / (8 * 5 * 10⁻³ * 0.15)

v = 0.39 m/s

Therefore, the average blood speed is 0.39 m/s

The gravitational potential energy is converted to kinetic energy hence the time taken to fall is 0.45 seconds

We must note that as the block falls, graviataional potential energy is converted to kinetic energy hence;

mgh = 1/2mv^2

gh =0.5v^2

v = √gh/0.5

v = √9.8 * 1/0.5

v = 4.4 ms-1

Now;

v = u + gt

Since the blocks are dropped from a height, u =0 m/s

4.4 = 9.8 * t

t = 4.4/9.8

t = 0.45 seconds

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Answer:

false is the answer because it was around in the 1880's

Explanation:

I hope this helped

Answer: True

Explanation: i took the quiz

Answer:

Approximately \(4.7\; {\rm s}\).

Explanation:

Acceleration is the rate of change in velocity.

The initial velocity of this vehicle was \(v_{0} = 24\; {\rm m\cdot s^{-1}}\). After stopping, the velocity will be \(v_{1} = 0\; {\rm m\cdot s^{-1}}\). Hence, the change in the velocity of this vehicle will be:

\(\begin{aligned}\Delta v &= v_{1} - v_{0} \\ &= 0\; {\rm m\cdot s^{-1}} - 24\; {\rm m\cdot s^{-1}} \\ &= (-24)\; {\rm m\cdot s^{-1}} \end{aligned}\).

It is given that the vehicle decelerates at a constant rate of \(5.1\; {\rm m\cdot s^{-2}}\). Thus, the rate of change in the velocity of this vehicle (acceleration) will be negative (velocity is decreasing) at \(a = (-5.1)\; {\rm m\cdot s^{-2}}\).

To find the time required for this change in velocity, divide the change by the rate of change:

\(\begin{aligned}(\text{time required}) &= \frac{(\text{change})}{(\text{rate of change})} \\ &= \frac{\Delta v}{a} \\ &= \frac{(-24)\; {\rm m\cdot s^{-1}}}{(-5.1)\; {\rm m\cdot s^{-2}}} \\ &\approx 4.7\; {\rm s}\end{aligned}\).

Answer:

B. The types of surfaces and how hard the objects are being pushed.

Explanation:

The force of friction is the result of the