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The minimum distance required to stop a car moving at 30 mi/h is 50 ft. What is the minimum stopping distance for the same car moving at 61 mi/h, assuming the same rate of acceleration?
A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.442 and the coefficient of kinetic friction is 0.240. How much force is needed to begin moving the book
A 0.100 kg block is suspended from a spring. When a small pebble of mass 40 g is placed on the block, What is the net force on the pebble when it is at a point of maximum upward displacement
An object is placed 68cm from a screen. What is the image's magnification
A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15.0 m/s due north relative to the water. Illustrate what is the velocity of the boat relative to shore?
Two 34 charges are attached to the opposite ends of a spring of spring constant 150 and equilibrium length 50. By how much does the spring stretch
a charge of -3.35 nc and a charge of -6.40 nc are separated by a distance of 80.0 cm. find the position at which a
A rocket of mass 3.52 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 61.0° above the horizontal and has a magnitude of 8.86 × 106 N. estimate the direction of the rocket's acceleration
a massive particle, rest mass M absorbs a photon. The inertial mass increases to 1.05 M. Determine the energy of the incoming photon
Two curves on a highway have the same radii. However, one is unbanked and the other is banked at an angle ?. Find the angle of the banked curve
A picture is supported by two cords each making an angle of 53degree with the horizontal. If the tension in each cord is 10N what is the weight of the picture
Calculate the net torque about the asle of the wheel assuming that a friction torque of .40m*N opposes the motion. determine its angular acceleration and angular speed
A car travels at an average speed of 88.0 km/h for 1.00 h and then at an average speed of 40.4 km/h during a second hour. What is the car's average speed through the 2.00 h interval?
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