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You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.51 times the passenger's weight. The elevator accelerates upward with constant acceleration for a distance of 2.9 m and then starts to slow down.
What is the maximum speed of the elevator?
Two friends are carrying a crate of mass 200 kg up a flight of stairs. The crate has length 1.25 m and height 0.500 m, What is the magnitude of the upper person's force
A single loop of wire with a resistance of .3? and with a radius of 10 cm is laid flat in a magnetic field of 1.2 T out of the page. What is the induced current while its moving
One of the first signs of sunburn is the reddening of the skin (called erythema). How many photons are incident on the skin in this amount of exposure
An object is a distance 6f from a converging lens. construct a ray diagram showing the location and orientation of the image
Two blocks of masses m1 = 2.00 kg and m2 = 4.40 kg are each released from rest at a height of h = 4.00 m on a frictionless track, Determine the velocity of each block just before the collision
A 57.4 g sample of a conducting material is all that is available. The resistivity of the material is 1.05 E-7 and the density is 6.09 g/cm^3. What will the diameter of the wire be
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. calculate the heat lost by each body from the vaporization of sweat
Sometimes mirages are formed when light reflects from of a warm layer of air near a hot surface (like a road). what is the index of refraction of the hot air
A homer run is hit in such a way that the baseball just clears a wall 14m high, located 122m from home plate. find the speed of the ball when it reaches the wall
A doubly charged ion (charge 2e) with velocity 6.9 × 106 m/s moves in a circular path of diameter 60.0 cm in a magnetic field of 0.80 T in a mass spectrometer
A solid cylinder is rolled down a ramp. They cylinder starts 0.29 m above the level surface below. If it starts at rest, what is the speed of the center of mass as it reaches the level surface
q. after driving a portion of the route the taptap is fully loaded with a total of 25 people with an average mass of 60
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