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Rhonda, who has a mass of 60kg, is riding at 25 m/s in hersports car when she must suddenly slam on the brakes to avoidhitting a dog crossing the road. She is wearing her seatbelt, whichbrings her body to a stop in .4 seconds.
What force did the seat belt exert to her?
A conducting sphere of radius 23.0 cm has an unknown positivecharge distributed uniformly over its surface. The strength of theelectric field at a point 0.480 m from the centerof the sphere is 12.0 N/C. What is the charge?
A fighter jet lands on the deck of an aircraft carrier. It touches down with a speed of 70.4 m/s and comes to a complete stop over a distance of 197.4 m, What is the acceleration of the jet
A displacement vector at an angle of 150 degrees (counter clockwise) from the x axis has a y component equal to 123 meters
A 7 kg ball is lifted from the ground to a height of 45 meters above the ground. The ball is then dropped. After the ball has fallen 5.5 m, what is it's PE and KE and how fast is it going?
The Millenium Falcon is chased by the Imperial Forces. The ship is moving at a speed of 0.549 c. What is the velocity of the protons in the resting frame when the cannon is shot in the backward direction
A particle of mass M is at rest at x=1. The potential energy is given by U=-Ax+C. Assume that the force associated with U is the only force acting on the particle. Find the force acting on the block
soap bubbles can display impressive colors which are the result of the enhanced reflection of light of particular
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.4 m/s and the tension in the rope is T = 14.9 N. How long is the rope
q1. two slits are illuminated by a 621nm light. the angel between the zeroth-order bright band at the center of the
question a highway curve with radius 850 is to be banked so that a car traveling 52.0 will not skid sideways even in
A high diver of mass 80.0 kg jumps off a board 10.0 m above the water. what average upward force did the water exert on him
A 31.0 omegacap.gif resistor and an 16.0 omegacap.gif resistor are connected in series across a 15.0 V battery. What is the voltage out of the battery
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