
A 1.0 kg glass bowl at 37 C is placed in a freezer. How much heat will the freezer have to remove from the bowl to take it to 0 C? (cglass = 0.2 cal/deggm)

How much heat must be removed from 500 g of water at 0 C to form ice at 0 C?

How much heat is necessary to vaporize 100 g of water at 100 C to form steam at 100 C?

How much heat must be added to 1.0 kg of iron to raise its temperature from 30 C to 75 C? (ciron = 0.11 cal/deggm)

"A cylinder with moment of inertia 29.8 kgm2 rotates with angular velocity 2.51 rad/s on a frictionless vertical axle. A second cylinder, with moment of inertia 36.9 kgm2, initially not rotating,

11. A 0.302 kg puck, initially at rest on a horizon tal, frictionless surface, is struck by a 0.177 kg puck moving initially along the x axis with a speed of 2.38 m/s. After the collision, the 0

A machine part rotates at an angular speed of 0.6 rad/s; its speed is then increased to 1.66 rad/s using an angular acceleration of 0.91 rad/s2. Find the angle through which the part ro tates be

In the vertical jump, a Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00s in the air (their "hang time"). Treat Kobe a

ronman steps from the top of a tall building. He falls freely from rest to the ground a distance of h. He falls a distance of h/ 3 in the last interval of time of 1.2 s of his fall. Hint: Firs

When a .22caliber rifle is fired, the expanding gas from the burning gunpowder creates a pressure behind the bullet. This pressure causes the force that pushes the bullet through the barrel. The barr
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Sample Questions
 The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
 (a) What is the average angular acceleration of the Earth?
 (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
1. Can you show me step by step how to solve this problem?:
 A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the 1.5m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19kg/m^3. Find the absolute pressure of the helium gas
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?