Penn Foster Students: less than the angle of refraction
Answer:
60 cm²
Explanation:
Pressure = Force / Surface area
This is a 2 stage problem which requires working out pressure of piston A and then using that pressure from piston A to calculate the surface area of piston B
Firstly work out pressure of Piston A:
Pressure = 200 / 4
Pressure = 50 N/cm²
Then work out the Surface area of piston B :
Since the pressure is transferred the pressure stays the same so :
Surface area = Force / Pressure
Surface area = 3000 / 50
Surface area = 60 cm²
Answer:
It got transferred to kinetic energy
Explanation:
<u>We are Given:</u>
Mass of the block (m) = 500 grams or 0.5 Kg
Initial velocity of the block (u) = 0 m/s
Distance travelled by the block (s) = 8 m
Time taken to cover 8 m (t)= 2 seconds
Acceleration of the block (a) = a m/s²
<u>Solving for the acceleration:</u>
From the seconds equation of motion:
s = ut + 1/2* (at²)
<em>replacing the variables</em>
8 = (0)(2) + 1/2(a)(2)²
8 = 2a
a = 4 m/s²
Therefore, the acceleration of the block is 4 m/s²
