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If a car starts with an initial velocity of 68.0 m/s, how long (in time) will it take to come to a complete stop after a distance of 12.5 m? Also what is the rate of acceleration for the car?
Suppose that a NASCAR race car is moving tothe right with a constant velocity of +97 m/s. What is the averageacceleration of the car? Twelve seconds later,the car is halfway around the track and traveling in the oppositedirection with the same speed...
An air puck of mass m1 = 0.21 kg is tied to a string and allowed to revolve in a circle of radius R = 0.8 m on a frictionless horizontal table. What is the horizontal force acting on the puck
a particular inverting circuit uses an ideal op amp and two 10-kq resistors. what closed-loop gain would you expect? if
A 24 GeV proton in cosmic radiation moves in Earth's magnetic field B, with a velocity v perpendicular to B, What is the radius of the proton's curved path in that region
A motorcycle has a constant speed of 23.0 m/s as it passes over the top of a hill whose radius of curvature is 149 m. Find the magnitude of the normal force that acts on the cycle
A soccer player 'heads' the size 5 ball deflecting it by 46.0°, and keeps its speed of 15.90 m/s constant. A size 5 ball has a mass of approximately 0.421 kg. What is the magnitude of the impulse which the player must impart to the ball.
A television broadcast antenna is located at the top of a steep tall mountain. The television station broadcasts by a power of4.00 kilowatts at a frequency of 180.0 MHz. (rms =“Root Mean Square"= square root of the average value of a function squared..
A 2.40-kg textbook is forced against a horizontal spring of negligible mass and force constant 300 N/m , compressing the spring a distance of 0.260m. find how far the textbook moves from its initial position before coming to rest
A car weighing 7600 Newton moves along a level highway with a speed of 100 km/h. estimate the new speed of car on the hill
An astronaut in his space suit and witha propulsion unit (empty of its gas propellant) strapped to hisback has a mass of 147 kg. During a space-walk, the unit, which hasbeen filled with propellant gas, ejects some gas with a velocity of+31.0 m/s.
The maximum current in a superconducting solenoid can be as large as 3.51 kA. what is the magnitude of the magnetic field it produces
Calculate the distance that a plane wave of frequency 1 GHz must travel in free space in order for its phase to be retarded by 90°. Repeat the calculation for propagation in a lossless dielectric with relative permittivity of nine.
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