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A car with a total mass of 1.92*10^3 kg has wheels of radius 31.0 cm and moment of inertia 0.830 kg · m2. What is the car's translational kinetic and rotational energy when the car is moving at a speed of 24.0 m/s?
If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Suppose right is the positive direction.)
A hydrogen atom initially in its ground state (n=1) absorb a photon and ends up in the n=3 state. what photon energies could the atom emit
A particle undergoes simple harmonic motion with maximum speed 2 m/s and maximum acceleration 3.7 m/s^2. Find the angular frequency. Find the period. Find the amplitude of the motion.
find the magnitude and direction of the impulse delivered to the ball by the floor.
A CD (radius 6.0 cm) is spinning freely with an angular velocity of490rpm when a bug drops onto the CD a distance4.4cm from the center. find the ratio of the bug's mass to the mass of the CD
When a 0.20-kg block is suspended from a vertically hanging spring, it stretches the spring from its unstrained 0.005 m. find the total mechanical energy of the system at any instant
cA square look has sides 12cm long and is wound with 50 turns of wire carrying 250mA of current. It is placed in a uniform magnetic field so the magnetic moment vector makes an angle of 70 degrees with respect to B. If B=0.65T what torque does the lo..
The gravitational force between two masses M and m seperated by a distance r is 40 N. What is the new force when this distance is halved
Four equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. calculate the magnitude of the force on the charge
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
A fountain shoots a jet of water 10 m into the air. The fountain has a round nozzle of diameter 1.84 cm at ground level, fed by a pump located 6 m belowground through a round pipe of diameter 5.19 cm.
A diver is planning to salvage a Spanish galleon located in 200 feet of water. He plans to use a diving suit that will be supplied with air from a hose. Calculate which compressor should be bought by the diver for the given condition
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