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A small metal object of mass m = 298-g and temperature Tm = 528-°C is dropped into V = 4.8-L of water at temperature Tw = 4.6-°C. This causes the temperature of the water to rise, so that the final equilibrium temperature of the water and metal object is Tf = 9.6-°C. What is the specific heat capacity of the metal? You may assume the specific heat of water to be 4186-J·kg-1·K-1 and the density to be constant in the temperature range of interest.
A cannonball is shot (from ground level) with an initial horizontal velocity of 36 m/s and an initial vertical velocity of 22 m/s. How far from where it was shot will the cannonball land
A 13 kg bucket of water of is suspended by a rope wrapped around a windlass that is a solid cylinder 0.400 m in diameter with mass 14.0 kg. The cylinder is pivoted on a frictionless axle through its center.
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
Light from a laser strikes a diffraction grating that has 6000 groves per centimetre. The distance between the central and maximum and the first order principal maximum is .700 m on a wall that is 1.80 m from the diffraction grating. Decide the wavel..
An aircraft carrier has a speed of 16.4 m/s relative to the water. What is the frequency of the sound heard by the crew on the aircraft carrier
A 0.127-m pencil is oriented perpendicular to the principal axis of a concave spherical mirror that has a radius of curvature of 0.300 m. What are the image distance and the image height if the pencil is 0.250 m from the mirror?
A major league pitcher of mass 100kg is standing on a skateboard of mass 2.00kg, holding a baseball, What is the speed of the skateboard
A hill is covered with snow, and has a slope of 30 degree above the horizontal. The slope is l = 40.m long. How fast is the snowball rolling at the end
The switch in a series RL circuit in which R = 5.60 ?, L = 2.10 H, and ?V = 24.2 V is closed at t = 0.0 s. What is the maximum current in the circuit? What is the current when t = 0.375 s?
A power plant operates at a 33.0% efficiency during the summer when the seawater used for cooling is at 20.0°C. what would be the plant's efficiency in the winter
What is the magnitude of a point charge that would create an electric field of 1.46 N/C at points 1.40 m away
How much energy is transferred to the water as heat. How much to the bowl. What is the original temperature of the cylinder
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