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Ships A and B leave port together. For the next two hours, ship A travels at 40.0mph in a direction 20.0 ?west of north while the ship B travels 45.0 ? east of north at 15.0mph .
1.) What is the distance between the two ships two hours after they depart?
2.) What is the speed of ship A as seen by ship B?
It is 155cm from your eyes to your toes. You're standing 190cm in front of the tall mirror. How far is it from your eyes to the image of your toes.
How much work did movers do (horizontally) pushing a 150-{rm kg} crate 10.6 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50.
In 0.181s, through a distance of 8.05 m, a test pilot's speed decreases from 88.9m/s to 0m/s. If the pilot's mass is 70 kg, how much work is done against his body.
When are the displacement, velocity, and acceleration equal to zero for the motion of a mass on a spring? A. at maximum displacement B. at minimum displacement C. at the equilibrium position D. at a displacement of 2x E.at a displacement of 1/3x.
When a 58 g tennis ball is served it accelerates from rest to a constant speed of 42 m/s the impact with the racket gives the ball a constant acceleration over a distance of 37 cm illustrate what is the magnitude of the net force acting on the ball..
Suppose you see two main-sequence stars of the same spectral type. Star 1 is dimmer in apparent brightness than Star 2 by a factor of 100. What can you conclude? (Overlook any effects that might be caused by interstellar dust and gas.)
The magnetic field has been measured to be horizontal everywhere along a rectangular path x = 22 cm long and y = 5 cm high. Along the bottom the average magnetic field B1 = 1.3 10-4 tesla, along the sides an average magnetic field B2 = 1.0 10-4 te..
find the velocity of their center of mass before the collision.
If it takes him 0.200 s to get brakes on and he is 20, from the intersection when he sees the light, will he be able to stop in time.
A 2500-kg sport utility vehicle travelling at 92 km/h can be stopped in 0.25 s if it hits a concrete wall. Assume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash, and..
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, while the other produces an acceleration in the y direction of ay = 7.60 m/s2. At the end of the firing period, the c..
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