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A 0.5 kilogram rubber ball is dropped from a height of 3.0 meter above a hard concrete ground. After striking the ground the ball bounces up to a height of 2.0 meter above the ground. The ball was in contact with the ground for 0.05 second.
Find the change in momentum of the ball during the interaction with the ground.
Find the magnitude of the average force of the ground on the ball during the interaction.
A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..
2 moles of an ideal gas is allowed to expand from 0.002 m^3 to 0.02 m^3 while the pressure is held at 325000 pascals. Determine the net heat flow in or out of the system
a 5.20 x 102 kg hot-air balloon takes off from rest at the surface of the earth. the nonconservative wind and lift
a speedboat of mass 539 kg including the driver is tethered to a fixed buoy by a strong 33.3-m cable. the boats owner
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. Determine the specific heat of the unknown second sample
A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 71.5 dB. What total sound intensity engulfs you
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
A 300-kg load is hung on a wire of length 5.00 m, cross-sectional area 0.200 × 10-4 m2, and Young's modulus 8.00 × 1010 N/m2. What is increase in length of the wire
Blocks A and B are connected across a frictionless pulley by a cord of negligible weight. If block B lies on a horizontal, frictionless surface and block A hangs vertically, what can be said about the acceelration of block B?
A train (an engine and four cars) is accelerating at 1.60 m/s^2 . The mass of each car is 3.60 x 10^4 kg, What is the force of the first car on the second car
A 4.5 %u03BCF capacitor initially has a charge magnitude Q = 2.0 x 10-8 C. What is the total energy stored in the capacitor
A 5.00kg block of ice is sliding across a frozen pond at 2.00m/s. A 7.60N force is applied in the direction of motion. After the ice block slides 15.0m, the force is removed. The work done with the applied force is?
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