If velocity decreases, mass increases or decreases?

Answer:

D. It is a description which does not work under similar conditions.

Explanation:

I not very sure, but I don't think the other are correct...

Answer:

D

Explanation:

This is one of the answers that remains on this question while the others get switched around if that makes sense

Final answer:

Both students do the same amount of work, but Ben delivers more power due to completing the work in a shorter time.

Explanation:

In this case, both Ben and Bonnie are lifting the same 50 kg barbell over their heads, but they are doing it at different rates. Bonnie lifts the barbell 10 times in one minute, which means she is doing the work over a longer period of time. Ben, on the other hand, lifts the barbell 10 times in 10 seconds, doing the work in a shorter amount of time.

The amount of work done is equal to the force exerted multiplied by the distance moved. Since the mass and distance are the same for both students, the work done is equal. However, power is defined as the rate at which work is done, which is calculated by dividing the work done by the time taken to do it. Since Ben completes the work in a shorter period of time, he delivers more power than Bonnie.

Therefore, Ben does the most work and delivers the most power.

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Answer:

Both of them

Explanation:

Answer:                

Distance traveled will be

Explanation:

We have given speed of the light

We have to find the distance traveled by light in 1 year

We know that 1 year = 8760 hour

And 1 hour = 60×60 = 3600 sec

So 1 year

We know that distance = speed × time

So distance traveled by light in one year

We have to fond the distance in km

As we know that 1 km = 1000 m

So

Final answer:

Radio messages will travel approximately 9.46 x 10^12 kilometers in exactly one year.

Explanation:

Radio waves travel at the speed of light which is approximately 3.00 x 108 m/s.

To find out how many kilometers radio messages will travel in exactly one year, we need to first convert the speed of light into kilometers per second.

Since there are 1000 meters in a kilometer, we divide the speed of light by 1000 to convert from meters to kilometers. Then, we multiply this value by the number of seconds in a year (365 days x 24 hours x 60 minutes x 60 seconds) to get the total distance traveled in kilometers.

In summary, radio messages will travel approximately 9.46 x 1012 kilometers in exactly one year.

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The coordinates of the event in system K can be found using the Lorentz transformation equations, and they are  (10/3 m, 3.5 m, 3.5 m, 8/3 m/c).

The Lorentz transformation equations relate the coordinates of an event in one reference frame to the coordinates of the same event in another reference frame that is moving with a constant velocity relative to the first reference frame.

The equations are as follows:

x = γ(x' + vt')

y = y'

z = z'

t = γ(t' + vx'/c^2)

Where γ is the Lorentz factor, which is given by:

γ = 1/√(1-v^2/c^2)

In this case, v = 0.8c, so γ = 1/√(1-(0.8c)^2/c^2) = 5/3.

Plugging in the values for x', y', z', t', v, and γ into the Lorentz transformation equations, we get:

x = (5/3)(2 m + (0.8c)(0)) = 10/3 m

y = 3.5 m

z = 3.5 m

t = (5/3)(0 + (0.8c)(2 m)/c^2) = 8/3 m/c

Therefore, the coordinates of the event in system K are (10/3 m, 3.5 m, 3.5 m, 8/3 m/c).

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A. Catalyst. ---------

The correct answer is:

B. 6.4 V

A voltage 6.4 V should be applied to have a current of 0.8 A.