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A cat stands on a board of wood in a frozen frictionless pond. The mass of the cat is 4.0 kg, and the mass of the board is 3.0 kg. If the cat walks 1.0 m along the board, how far does the cat move in relation to the pond?
At what driving frequency fd do two phasors have the same length? At that driving frequency, what are (c) the phase angle in degrees, (d) the angular speed at which the phasors rotate, and (e) the current amplitude?
The diagram below shows a block (B) resting in equilibrium on a spring of stiffness k [N/m] and damper of damping constant c [Ns/m]. What is the steady-state deflection d of the system
Estimate the average speed of the Apollo spacecraft in meters per second, given that the craft took five days to reach the Moon from Earth
It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. Find out the angular speed of the wheel at t = 2.30 s.
A person pushes a 13.6-kg shopping cart at a constant velocity for a distance of 33.1 m on a flat horizontal surface. find the magnitude of the force that the shopper exerts
A dead battery is charged by connecting it to the live battery of another car with jumper cables. Determine the current in the dead battery
How much force does a 150,000 N/C force exert on a deuteron.
A group of students have measured the time it takes for a cart to travel some distance along a level track. What is the best estimate of the relative error in their determination of the cart´s speed
A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic, What are the speeds of the U.S. and the French subs
An Olympic runner is at the starting gate and hears the starting gun, Using only acceleration, ai, and time, tr, write an expression for the runner's final speed, vr, when he crosses the finish line
A 2 kg ball is thrown straight up in the air. What is the net force acting on the ball when it reaches its maximum height?
A large mirror is hung from a nail. The supporting steel wire has a diameter of 0.20 mm and an unstretched length of 1.60 m. What is the distance between the nail and the top of the frame
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