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Starting with a constant velocity of 50 km/h, a car accelerates for 32 seconds at an acceleration of 0.5 m/s2. What is the velocity of the car at the end of the period of 32 seconds of acceleration?
A small 15{rm g} bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction.
A stone used in the sport of curling has a mass of 18.0 kg and is initially at rest, sitting on a ?at ice surface. What is the acceleration of the stone and what is the work done in accelerating it
three charged particles are fixed to an x axis particle 1 of charge q1 2.1e-8 c is at position x20 cm and particle 2
A series RLC circuit has a resistance of 80? , an inductance of 0.48H , and a capacitance of 3.0, f= 130Hz. What is the impedance at that frequency??F
A man is traveling on a bicycle at 14 m/s along a straight road that runs parallel to several railroad tracks. He hears the whistle of a train that is behind him. The frequency emitted with the train is840 Hz, but the frequency the man hears is 778 H..
She measures a distance of 30.0 m from one stake to another on the same side of the river, thus finding the third vertex on a right triangle. She then measures the angle q and finds it equal to 75.9o. What is the distance across the river?
A point charge q1 is held stationary at the origin. A second charge q2 is placed at point a and the electric potential energy of the pair of charges is +7.0 x 10-9 J. What is the electric potential energy of the pair of charges
A wheel (mass = 7.54 kg, radius = 16.8 cm) rolls, without slipping, down the side of a hill. How much energy does the wheel lose to friction
A 480 kg car moving at 14.4 m/s hits from behindanother car moving at 13.3 m/s in the same direction. If the second car has a mass of 570 kg and a newspeed of 17.9 m/s, what is the velocity of the first car after the collision?
You are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 23.7-m tall building and land on the ground safely at a final vertical speed of 3.85 m/s. How many revolutions does the drum make during..
question the nucleus of a typical atom is 5.0 fm 1 fm 10-15 m in diameter. a very simple model of the nucleus is a
A toy chest and its contents have a combined weight ofW= 200 N. The coefficient of static friction between toy chest and floorμsis 0.450. The child in the figure attempts to move the chest across the floor by pulling on an attached rope.(a)Ifθis 43.0..
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