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A 310-g air track cart is traveling at 1.25 m/s and a 260-g cart traveling in the opposite direction at 1.33 m/s. What is the speed of the center of mass of the two carts?
A block of 3 kg is sitting at rest on an incline of 10 degrees. Use the impulse-momentum approach to calculate how long the block will continue to slide before it comes to a stop on the incline
A cannon fires a cannon ball eastwards at a speed of 20 m/s and an angle of 45o above the horizontal. If the cart is to be at the same position as the cannon ball when the cannon lands, then what is the acceleration of the cart?
The electric field within the membrane separating the inside and outside of a biological cell is approximately 7.7MV/m, what is the potential difference across the membrane
A cylindrical electromagnet contains a uniformly magnetized core having a magnetization of 1.5 x10^6 A/m, Find the magnetic field in the core
A speaker has a diameter of 0.35 meter. Assuming that the speed of sound is 343 m/s, determine the diffraction angle θ for a 2.0-kHz tone
The cheetah can reach a top speed of 114 km/h (71 mi/h). Determine the cheetah's average acceleration during the short sprint
a charged material causes the deflection of a positively charged electroscope to increase. does the charged material
A spring with spring constant 10N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. What is its the mass of the ball
A car of mass m = 1470 kg is pushed off a cliff of height h = 23 m. If the car lands a distance of 7 m from the base of the cliff, what was the kinetic energy of the car
Describe the relationship between scatter and beam energy. Discuss how the different types of photon interactions govern this relationship
How many nitrogen molecules must strike a 1 cm2 surface each second to exert a pressure of 1 atm (Assume that the molecules are all moving at the same speed, at a temperature of 300K, and 45 degree angle to the wall).
A rocket blasts off from rest and attains a speed of 60.0 m/s in 13.9 s. An astronaut has a mass of 67.8 kg. What is the astronaut's apparent weight during takeoff
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