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You have a 2.5kg copper block at room temperature.
A) Find the energy required to raise the copper's temperature to its melting point.
B) Find the energy required to melt the copper once it's reached the melting point.
Like all stars, our sun converts mass into energy which radiates (spherically) in all directions. Calculate the rate at which the sun is losing mass
The molecule has a rotational kinetic energy that is of the translational kinetic energy of its center of mass. What then is molecule's angular speed about the center of mass.
If the current in the solenoid increases uniformly from 0 to 4.1A in 0.70s , what will be the induced emf in the short coil during this time
In one such decay the electron and the neutrino are emitted at right angles to each other. The electron (mass 9.11x10^ -31 kg)has a speed of 3.8x10^ 7 m/s and the momentum of 7.6x10^ -24 kg m/s. What is the recoil speed of the nucleus?
A proton and an electron are fixed in space with a separation of 957 nm. Calculate the electric potential at the midpoint between the two particles. Find the magnitude and direction of the electric field at the same point.
A car rounds a curve that is banked inward. The radius of curvature of the road is R = 139, the banking angle is ? = 31°, Find the minimum speed that the car can have without slipping
An aging coyote cannot run fast enough to catch a roadrunner. He purchases on eBay a set of jet-powered roller skates, Determine the minimum speed the roadrunner must have to reach the cliff before the coyote
A car of mass 1200kg is heading east at 10m/s. A second car of mass 1500kg is heading west at 20.0m/s. They meet in an elastic collision. What was the initial kinetic energy of the system
A 58-kg water skier is being pulled by a nylon tow rope that is attached to a boat. What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.90 m/s2
1 the scientific method is used by scientists to understand the natural laws that the universe obeys. scientists are
A 24N crate is held at rest on a frictioneless incline by a rope that is parallel to the incline. The incline is 25 degrees above the horizontal
A test tube contains 2.56 10-4 m3 of liquid carbon tetrachloride at a temperature of 75.5° C. Find the volume of carbon tetrachloride in the test tube at -11.7° C
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