The specific heat capacity of aluminum is 0.22 cal/g°C. How much energy needs to flow into 20.0 grams of aluminum to change its temperature by 15°C?

0.017 cal

0.29 cal

66 cal

1363 cal

A rocket blasts off and moves straight upward from the launch pad with constant acceleration. after 3.6 s the rocket is at a height of 70.0 m. (a) what are the magnitude and direction of the rocket's acceleration?

How are kyanite crystals formed

How did napoleon raise soldiers for hi army

If the price were $2, a A) surplus of 50 units would exist and price would tend to rise. B) surplus of 25 units would exist and price would tend to fall. C) shortage of 25 units would exist and price would tend to fall.

If you add mass to a car on a ramp the acceleration of the car does not increase proportional to the increase in mass. Why not?

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww