What is their total energy at the top of the hill
Course:- Physics
Reference No.:- EM13298394

Assignment Help
Assignment Help >> Physics

1 Equal amounts of heat are added to equal masses of copper and silver at the same initial temperature.

(a) Which metal will have the higher final temperature?

How many times greater will that temperature change be than the temperature change of the other metal?

2 A cylinder of gas is at room temperature (20°C). The air conditioner breaks down, and the temperature rises to 57°C. What is the new pressure of the gas relative to its initial pressure (p1)?

3 A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high.

(a) What is their total energy at the top of the hill?


(b) Assuming there is no friction, what would the total energy be on sliding halfway down the hill?


Put your comment

Ask Question & Get Answers from Experts
Browse some more (Physics) Materials
In preparation for building a space station, an astronaut removes a self-telescoping uniform rod from the cargo bay and releases it, not noticing that he gave it an angular
The gravitational force exerted on a baseball is 2.11 N down. A pitcher throws the ball horizontally with velocity 15.0 m/s by uniformly accelerating it along a straight
The gravitational acceleration of bodies dropped near the Moon's surface is about 1.6 m/s^2. Find the time for an object dropped from rest to fall 3.0m on the Moon Find the
Derive an equation for radius r of circular path that the electrons follow in terms of the magnetic field B, the electrons’ velocity v, charge e, and mass m. You may assume
A 1.0 kg wood block is pressed against a vertical wood wall by a 12 N force at 30 degrees above the negative x-axis. If the block is initially at rest, will it move upward, mo
an antelope moving with constant acceleration covers thedistance between two points 70.0m apart in 7.00s. its speed as itpasses the second point is 15m/s. what is its speed
Inside a helium nucleus there are two protons, each of charge +e. Calculate the strengths of the electrostatic repulsive force and the gravitational attractive force between t
Figure below shows two very long straight wires (in crosssection) that each carry a current of 4.17 A directly out of thepage. Distance d1 = 6.12 m and distance d2 = 4.32 m.