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You're riding on a cart, carrying a box, moving at an initial speed of vi. You throw the box off the cart such that it lands at rest (zero velocity with respect to the ground so that the ground doesn't have to exert a horizontal force to stop the box). If the box has 1/2 the mass of you and the cart, what will be the final speed of the cart (with you still on it)?
Determine the work function of sodium and cutoff frequency - Determine the scattering angle of the scattered photon with respect to the positive x-axis, the energy of the scattered photon and the kinetic energy of the scattered electron.
A star is moving away from Earth at a speed of 2.3 108 m/s. What is the wavelength as measured by an Earth observer
At time a grinding wheel has an angular velocity of 21.0. It has a constant angular acceleration of 26.0 until a circuit breaker trips at time = 1.6. From then on, the wheel turns through an angle of 435 as it coasts to a stop at constant angular dec..
A trap door, of length and width 1.55 m, is held open at an angle of 65.0° with respect to the floor. what is the torque exerted on the trap door by the rope
A certain freely falling object requires 1.7s to travel the last 40m before it hits the ground. From what height above ground did it fall.
A 2000-kg car accelerates uniformly from rest to 30 m/s in a time of 20 s. What is the net force acting on the car
A 60 gram iron at 60o C is dropped into 200 gram of water at 20o C, What is the final equalibrium temperature of the system
Years ago, a block of ice with a mass of about 19.0 kg was used daily in a home icebox. The temperature of the ice was 0.0°C when it was delivered. how much heat did a block of ice absorb
A car initially traveling eastward turns north by traveling in a circular path at uniform speed, Determine its average acceleration during the 30.0-s interval
What intensity level of the horn's sound is observed by somebody waiting at an intersection 58m from the train.
The mass of the motorcycle and driver is 348 kg. Find out the magnitude of the normal force that acts on the cycle.
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charge, What is the magnitude of the charge on each object
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