Aluminium has a specific heat capacity of 900 J/(kg°C). The internal energy of a 2.0kg block of aluminium increases by 13500 j.
By how much does the temperature of the block increase?

B 0.13°C
C 7.5°C
A
0.067 °C
D 15°C

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

Aballet student who learns with the of his instructor is demonstrating learning.

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude