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Q1. A jetliner is moving at a speed of 274 m/s. The vertical component of the plane's velocity is 54.0 m/s. Conclude the magnitude of the horizontal component of plane's velocity.
Q2. A 1700 kg car rounds a curve of radius 70 m banked at an angle of 12°. What is the magnitude of the friction force necessary for the car to travel at 82 km/h?
Q3.A 89000 spaceships comes in for a vertical landing. From the initial speed of 1.00, it comes to rest in 2.00 with uniform acceleration.
What braking force should its rockets provide? Overlook air resistance.
Guess scale factor of the Universe
Assume air resistance is negligible; from what height (in cm) above the compressed spring was the block dropped.
If the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second.
Conclude the electric field at the origin
A 100-kg halfback running north with a speed of 12 m/s is tackled by a 110-kg opponent running south with a speed of 4.0 m/s. If collision is completely inelastic and head-on, compute the speed of the players just after the tackle.
What should be the least kinetic energy in electron volts
How much work done against force of gravity
On an airplane's takeoff, the combined action of the air around the engines and wings of an airplane exerts an 8020-N force on the plane, focussed upward at the angle of 55.0° above the horizontal. The plane rises with constant velocity in the vertic..
What is the least coating thickness required
What is total mechanical energy of the motion
What friction torque is necessary to reduce its angular speed from 90.0 {rm rpm} to 45.0 {rm rpm} in a time interval of 32.0 {rm s}.
Find out kinetic energy of the merry-go-round
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