Answer:
Yes.
Explanation:
Sound waves travel through metal 17 times faster than air.
You weigh slightly more at the beach than on top of a mountain, because at the beach, you're closer to the center of the Earth.
Answer:
Work done, W = −287500 Joules
Explanation:
It is given that,
Mass of the car, m = 920 kg
The car is travelling at a speed of, u = 90 km/h = 25 m/s
We need to find the amount of work must be done to stop this car. The final velocity of the car, v = 0
Work done is also defined as the change in kinetic energy of an object i.e.


W = −287500 Joules
Negative sign shows the work done is done is opposite direction.
Given:
An ideal gas expands at constant pressure:
P = 105 pascals
V1 = 1 m3
V2 = 4 m3
then, the gas is compressed to 1/3 of the pressure and volume 2.50 m3.
Work at constant pressure:
W = PΔV
W = 105 pascals * (4 m3 - 1 m3)
W = 315 Joules
Work at constant volume is zero.
C) the sun
all the mass of the solar nebula became the Sun