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A 1,500 kg car is traveling with a velocity of 3 m/s. How much work must be done on this car to bring it to a complete stop?
vector r=(7.07(m/s)t)i+(7.07(m/s)t-4.90(m/s^2)t^2)j is the postition of a projectile as a function of time (the x-direction is horizontal, What is the Maximum height of the projectile
A woman at an airport is towing her 15.0-kg suitcase at constant speed by pulling on a strap at an angle ? above the horizontal. What angle does the strap make with the horizontal
The "reaction time" of the average automobile driver is about 0.7. Compute the total distance covered in coming to a stop after a signal is observed from an initial velocity of 14.6
A car is traveling at 47.0 km/h on a flat highway. what is the minimum distance in which the car will stop
An ideal transformer has 400 turns on its primary and 18 turns on its secondary. what is the power output
Classical Mechanics: Projectile Motion, A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.80 m/s at an angle of 21.0° below the horizontal. It strikes the ground 3.00 s later.
A cart with mass 310 g moving on a frictionless linear air track at an initial speed of 1.4 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. What is its speed after impact
A hydrogen atom initially in the ground state absorbs a photon, which excites it to the n = 12.0 state. Determine the frequency of the photon
A spaceship moves with a speed v = 0.86c relative to a space platform that has a landing strip 4500 m long. What is the apparent length of the landing strip
A power station delivers 510 kW of power at 12,000 V to a factory through wires with total resistance 3.5 . How much less power is wasted
how long does the block remain in contact.
A thin, light wire is wrapped around the rim of a wheel, The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. what is the mass of the wheel
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