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4. A car with a mass of 1000 kg is initially moving due east
4. A car with a mass of 1000 kg is initially moving due east with a speed of 15.0 m/s. As the road curves, the car slows to a speed of 10.0 m/s and ends up traveling in the direction 30.0◦ east of nor… read more
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A 2.1 kg block of wood sits on a table. A 3.0 g bullet,
A 2.1 kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 550 m/s , goes completely through the block, emerging at a speed of 250 m/s .What is the speed of the block imm… read more
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You have been asked to design a "ballistic spring system" to
You have been asked to design a "ballistic spring system" to measure the speed of bullets. A bullet of mass m is fired into a block of mass M. The block, with the embedded bullet, then slides across a… read more
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Two objects collide head-on (see figure below). The first
Two objects collide head-on (see figure below). The first object is moving with an initial speed of v1i = 8.04 m/s and the second object is moving with an initial speed of v2i = 10.00 m/s. Assuming th… read more
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13) A 4.00 kg object traveling at 3.00 m/s collides with a
13) A 4.00 kg object traveling at 3.00 m/s collides with a 3.00 kg object moving in the opposite direction. After the collision both objects are at rest. How much kinetic energy was lost in the collis… read more
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13) A 4.00 kg object traveling at 3.00 m/s collides with a
Second opinion] 13) A 4.00 kg object traveling at 3.00 m/s collides with a 3.00 kg object moving in the opposite direction. After the collision both objects are at rest. How much kinetic energy was lo… read more
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I have a few questions of general physiscs need answering. A
i have a few questions of general physiscs need answering … read more
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A man walk 50m north, 65m at 45deg. N of E and finally 40m
a man walk 50m north, 65m at 45deg. N of E and finally 40m at 75deg N of E. calculate displacement … read more
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4.80 Two blocks M1 and M2 are connected by a mass-less string
4.80 Two blocks M1 and M2 are connected by a mass-less string that passes over a massless pulley (Figure 4.46). M2, which has a mass of 20 kg, rests on a long ramp of angle θ equal to 30°. Friction ca… read more
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A 1.30 kg block is attached to a horizontal spring with spring
A 1.30 kg block is attached to a horizontal spring with spring constant 2650 N/m. The block is at rest on a frictionless surface. A 7.30 g bullet is fired into the block, in the face opposite the spri… read more
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A 1150 kg automobile is at rest at a traffic signal. At the
A 1150 kg automobile is at rest at a traffic signal. At the instant the light turns green, the automobile starts to move with a constant acceleration of 5.8 m/s2. At the same instant a 2100 kg truck, … read more
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A body of mass 3.2 kg makes an elastic collision with another
A body of mass 3.2 kg makes an elastic collision with another body at rest and continues to move in the original direction but with 1/5 of its original speed. (a) What is the mass of the other body? (… read more
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A heavy wooden block rests on a flat table and a high-speed
A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of th… read more
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Q) A 6500-kg helicopter accelerates upward at 0.60 m/s while
Q) A 6500-kg helicopter accelerates upward at 0.60 m/s² while lifting a 1200-kg car. (a) What is the lift force exerted by the air on the rotors? (b) What is the tension in the cable (ignore its mass)… read more
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a .5 slug bowling ball sliding at 20 ft/second strikes a .125-slug
a .5 slug bowling ball sliding at 20 ft/second strikes a .125-slug pin squarely. If the ball continues moving at 12 ft/sec, what is the speed of the pin?… read more
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Question 1. A 1055 kg van, stopped at a traffic light, is
Question 1. A 1055 kg van, stopped at a traffic light, is hit directly in the rear by a 775 kg car traveling with a velocity of +2.15 m/s. Assume that the transmission of the van is in neutral, the br… read more
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If a 3.00kg mud ball has a perfectly inelastic ...
If a 3.00kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest and the composite system moves with a speed that is 1/3 the origonal speed of the 3.00 kg ball… read more
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The sooner this can be done ill pay more...i need it in 1 1/2 hrs.
you can e-mail me with each worked out as soon as they are worked out...i have more than this....if none of them can be done in that time....n/m A safe with mass of 150 kg is at the rest on the floor.… read more
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