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Q. An airplane is flying with a velocity of 85.0 at an angle of 21.0 above the horizontal. When the plane is a distance 108 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. how far from the dog will the suitcase land.
Q. Dan is gliding on his skateboard at 4.00 . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.00 (as measured by an observer on the ground). Dan's mass is 60.0 and the skateboard's mass is 5.00 .How fast is Dan going as his feet hit the ground?
A worker pushed a 27kg block 7.4m along a level floor at constant speed with a force directed 29° below the horizontal.
A child exerts a tangential 47.6 {N} force on the rim of a disk-shaped merry-go-round with a radius of 2.10 {m}. If merry-go-round starts at rest and acquires the angular speed of 0.080 {rev/s} in 3 {s}, what is its mass.
Calculate the total amount of energy that flows into the space between the capacitor plates from to , by first integrating the Pointing vector over the surface that connects the edges of the two circular plates, and then integrating over time.
An old trick to find out if a train is coming is to put your ear on the rails of the track. Why is this more effective than just listening for the sounds the train makes in air.
A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.
A cat runs along a straight line (the x-axis) from point A to point B to point C. The distance between points A and C is 5.00 m, distance between points B and C is 10.0 m, and the positive direction of x axis points to the right. The time to run f..
Speedboat A negotiates a curve whose radius is 150m. Speedboat B negotiates the curve whose radius is 190m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
Compute magnitude of the average velocity
You have a 56.9-mF capacitor initially charged to a potential difference of 10.1 V. You discharge the capacitor through a 4.77-Ω resistor. What is the time constant? After what multiple of the time constant does the potential difference reach 2.47 V.
How to find the position and height of an image
Current & magnetic induction in the electrical circuits.
What is the magnitude of an average acceleration of the ball
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