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A car engine produces a constant power of P = 230 hp. The car and motor have a combined mass of m = 1880 kg.
A) The car starts from rest, and after t = 5s what is the car's speed, in meters per second? You may assume no energy is required to spin the tires.
B) Assume a top fuel dragster of mass m = 1000 kg can accelerate and cover 450 m in 6.9 seconds from a dead stop. How much horsepower is the engine producing, assuming the acceleration is constant?
A 530.9 Watt space heater is designed for operation in Germany, where household electrical outlets supply 230 Volt (rms) service. Determine the power output of the heater
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A box of mass is sliding down a frictionless plane that is inclined at an angle above the horizontal, as shown in the figure (Figure 2) . What is the work done on the box by the force due to gravity , if the box moves a distance ?
A disk-shaped merry-go-round of radius 3.02 m and mass 159 kg rotates freely with an angular speed of 0.635 rev/s. A 54.1-kg person running tangential to the rim of the merry-go-round at 3.07 m/s jumps onto its rim and holds on. Before jumping on the..
You are sitting in the back of a produce truck that has stopped at a red light. You want to measure its acceleration when the light turns green. To what angle does the potato swing from the vertical
Object Q stands on the central axis of a spherical mirror. For p= +15, concave mirror, and 10 centimeter between the focal point and the mirror. Determine the lateral magnification
Through a nuclear accident, 510m3 of emergency cooling water at 18C are injected into a reactor vessel where the reactor core is producing heat at the rate of 200 MW. If the water is allowed to boil at normal atmospheric pressure, how long will it ta..
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A 13 g projectile traveling 152 m/s penetrates into a 0.25-kg wad of putty and emerges plainly at28 m/s. If the putty is stationary on a frictionless surface when hit, how fast does it move after the projectile emerges?
A small ferryboat is 4.00 m wide and 6.00 m long. When aloaded truck pulls onto it, the boat sinks an additional3.70 cm into the water. What is theweight of the truck
A charge of 4.10*10-6 C is placed on a small conducting sphere that is located at the end of a thin insulating rod whose length is 0.22 m. The rod rotates with an angular speed of ω = 148 rad/s about an axis that passes perpendicularly during its oth..
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