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Sphere A has a mas m and is moving with velocity v (along +x axis). It makes a head-on elastic collistion with a stationary shpere B of mass 2m. after the collisiion, the spee of sphere B is 2v/3. What is the velocity of Sphere A in terms of v after the collision?
A small oven has a surface area of 0.26 m2. The insulated walls are 1.3 cm thick with an average thermal conductivity of 0.040 W/moC. What is the rate of heat loss
A certain capacitor in a circuit has a capacitive reactance of 26.9 ? when the frequency is 189 Hz. What capacitive reactance does the capacitor have at a frequency of 6210 Hz
A 54.6 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.18×10-7 ?m and the density is 7.82 g/cm3. What length is required
Water at a pressure of 4 atm, at street level, flows into a building at 0.5 m/s through a 6 cm diameter pipe. Calculate the water pressure and velocity on the top floor
A satellite of mass 5400kg orbits the Earth and has a period of 6580s, determine the magnitude of the Earth's gravitational force on the satellite
A 1.00-kg block compresses a spring for which k1 = 100. N/m by 20.0 cm and is then released to move across a horizontal, frictionless table, determine the maximum compression of the second spring
A 160 g trick baseball is thrown at 63 km/h . It explodes in flight into two pieces, How much energy, in joules, do the pieces gain in the explosion
A scuba tank has a volume of cm2. For every deep dives, the tank is filled with (by volume) pure oxygen and 50% pure helium. What is the ratio of the rms speeds of the two types of molecules
Two tug boats are towing a ship. Each exerts a horizontal force of 5 tons and the angle between their towropes is 90 degrees. What net force is exerted on the ship?
It's nighttime, and you've dropped your goggles into a swimming pool that is 4.5m deep. How far are the goggles from the edge of the pool
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground as he slows down.
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
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