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A 3.30-g copper coin at 21.0°C drops 45.0 m to the ground. (Assume the specific heat of copper is 387 J/kg · °C.)
(a) Assuming 55.0% of the change in gravitational potential energy of the coin-Earth system goes into increasing the internal energy of the coin, determine the coin's final temperature.
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. What is the total time the hare is moving
A ball has a diameter of 3.90 cm and average density of 0.0845 g/cm3. What force is required to hold it completely submerged under water
An object falls because of gravity at a rate of -9.80 m/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo= 0) and its position starts from do= 0.0, where is it 10.00 Seconds later.
question1which of the follow describes possible scenarios?a an object has zero instantaneous velocity and non-zero
To increase the resolving power of a microscope, the object and the objective are immersed in oil (n = 1.54), what is the limiting angle of resolution with the oil
A 0.800 m long solenoid is formed by wrapping 740 turns of wire around a hollow cylinder with a radius of 0.160 m. calculate the energy stored in the field
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A cannon tilted upward at = 31 fires a cannonball with a speed of 94 . At that instant, what is the component of the cannonball's velocity
The second minimum in the diffraction pattern of a 0.12 mm -wide slit occurs at 0.68 degrees. What is the wavelength of the light?
A photon with energy 1.85 eV is absorbed by a hydrogen atom. Find the speed of the electron released from the state in part (a) when it is far from the nucleus
The fundamental frequency of a standing wave on a 1.3-m-long string is 410Hz. What would be the wave speed of a pulse moving along this string
What is the frequency of the string.
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