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A 75 kilogram man is standing on a scale in an elevator. Determine what is the reading in Newton if the elevator is at rest? Moving up at a constant velocity of 2.0 m/s and accelerating up at 2.0 m/s.
The base of the cloud, which is roughly parallel to the Earth's surface, serves as the negative plate and the region of Earth's surface under the cloud serves as the positive plate. The separation between the cloud base and the Earth's surface is ..
The block of mass M slides back along the horizontal surface with a coefficient of kinetic friction ?k and eventually comes to a rest. calculate the total trip time from bullet impact to now
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degree with the horizontal, Find the magnitude of the hanging block''s acceleration
Once the station is completed, it is set rotating at a rate that requires an object at the rim to have radial acceleration, thereby simulating Earth's surface gravity. This is accomplished using two small rockets, each with 130 thrust that are mounte..
Light of wavelength 5.30 102 nm passes through a slit of width 0.230 mm. Determine the width of the first-order bright fringe
an instrumcnt to measure the acceler.ttion of gravity on mars is constructed of a spring from which is suspendcd a mass
An airfoil is being tested at an altitude of 34000 ft, standard atmosphere, and a speed of 600 knots. At a specific point "A.'' the pressure is measured to be at eighty-seven percent (87%) of the free tream pressure. Determine the local velocity a..
A liter of water has a mass of 1 kg and the mass of a water molecule is 18 amu. How many molecules of water are there in 2 L of water
A cockroach of mass m lies on the rim of a uniform disk of mass 8m that can rotate freely about its center like a merry-go-round. at first the cockroach and disk rotate together with an angular velocity of 0.200 rad/s. Then the cockroach walks half..
An 8.0 kg block is released from rest, v1 = 0 m/s, on a rough incline, which has an angle of 40 from the horizontal. How much work gravity do on the block during this process
a golf ball rolls of a cliff with an inital speed of 13.0 m/s. theball falls a vertical distance of 18.8 m into a lake below. Ittakes 1.45 s. What is the speed of the ball just before it hits the water
When ultraviolet light with a wavelength of 400.0 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is measured to be 1.10 eV. What is the maximum kinetic energy of the photoelectrons
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