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Assume a slide similar to the Der Stuka is 35.0 meters high, but is a straight slope, inclined at 45o with respect to the horizontal.
(a) Determine the speed of a 60 kilogram woman at the bottom of the slide, suppose no friction.
(b) If the woman has a speed of 20.0m/s at the bottom, determine the change in mechanical energy due to friction and
(c) the magnitude of the force of friction, assumed constant.
A balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. Assume that the stretching of the hose obeys Hooke's law with a spring constant of 53.0 N/m.
A silver wire 1.7 millimeter in diameter transfers a charge of 70 C in one h and ten min. Find what is the magnitude of the drift velocity of the electrons
A stone is thrown horizontally from the roof of a tall building with a speed of 23.3 m/s. how far from the building will the stone land
When a 0.20-kg block is suspended from a vertically hanging spring, it stretches the spring from its unstrained 0.005 m. find the total mechanical energy of the system at any instant
a 255 g mass attached to a horizontal spring oscillates at a frequency of 3.70 hz . at t0 s the mass is at x 4.80 cm
A 400lb woman stands on a floor in flat soled shoes. A 130lb woman stands on the same floor in a high heel shoe with all her weight is on the heel of the shoe. Which person is more likely to dent the floor?
questionnbspnbspfind 3-5 different types of vacuum pumps - explain how they work - explain where you would use them -
A 2.6-kg object hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, the rope makes an angle of 5.0° with the vertical, as shown in the figure below. Find the acceleration of the car.
A sled starts from rest at the top of a hill and slides down with a constant acceleration. What is the speed of the sled when it passes the 14.4-m point
A laser emits a monochromatic beam of wavelength λ, which is reflected normally from a plane mirror, receding at a speed v. What is the beat frequency between the incident and reflected light?
A NASCAR racecar rounds one end of the Martinsville Speedway. This end of the track is a turn with radius approximately 57.0 m. What is the force responsible for the centripetal acceleration in this case
a car is driven along a circular track. the track road is flat. the car starting from rest increases its speed
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