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A car traveling initially at 53.5 km/h crashes into a brick wall. The front end of the car collapses, and the 75.0-kg driver, held in his seat by a shoulder harness, continues to move forward 1.00 m after the initial contact, decelerating at a constant rate. Find the horizontal force exerted on him by the seat harness. (Give the magnitude of the force.)
A 0.1-kg object is traveling to the right (in the positive direction) with a speed of 3 m/s. find the magnitude of the impulse (in N-s) acting on the object
A box at rest has the shape of a cube 3.5m on a side. This box is loaded onto the flat floor of a spaceship, What is the volume of the box as we observe it
A baseball is bunted down the third-base line leaving the bat from a height of 0.850m with an initial velocity of 4.00m/s at an angle of 36.87° above horizontal, what is the baseball's tangential acceleration at maximum height
A block of ice of mass 100 g and at 00 C is dropped into 500 g of water at 800 C in a Styrofoam cup. describe the process of each heat loss or gain
A van is moving with a constant acceleration, a0, up a hill that makes an angle ? with the horizontal. what is the acceleration of the van
What is the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside is 1.37?
A 0.954-kg toy car is powered by 2 C cells (3.00V total) connected directly to a small DC motor. The car has an effective energy conversion efficiency of 52.6%, What is the average current supplied to the car\'s motor
A transformer changes the 10,000 V power line to 120 V. If the primary coil contains 750 turns, how many turns are on the secondary
A 1200 kg car is pulling a 500 kg triler along level ground. Friction is negligible. What is the magnitude of the force exerted by the car on the trailer
A piece of aluminum with a mass of 1kg and density of 2700 kg/m^3 is suspended from a string and then completely immersed in a container of water. Determine the volume of the aluminum
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear
A hand-pumped water gun is held level at a height of 0.84 m above the ground and fired. Find the gauge pressure of the water gun's reservoir
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