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An astronaut floating in space is separated from his ship. his mass is 85.0kg and he is 10.0m for his ship. he throws a wrench mass is .800kg in opposite direction with a velocity of 20.0m/s. How long will it take him to reach the ship.
An object is placed 20.0 cm from a first converging lens of focal length 10.5 cm. Calculate the magnification of the first lens
a bicycle tire of radius 0.33 m and mass 1.5 kg is rotating at 98.7 rads. what torque is necessary to stop the tire in
Explain by how much upward force does each support exert on the beam? (Enter your answer for support 1 first, followed by your answer for support 2.)
two spaceships approach earth with equal speeds as measured by an observer on earth but from opposite directions. a
A broad beam of light of wavelength 485nm is incident at 90° on a thin, wedge-shaped film with index of refraction 1.50. An observer intercepting the light transmitted by the film sees 17 bright and 16 dark fringes along the length of the film. By..
A 2.18-m-long diving board of mass 13.2kg is 3.00m above the water. It has two attahcments holding it in place. Assuming that the board has a uniform density, find the force acting on each attachment
Inductive battery chargers, which allow transfer of electrical power without the need for exposed electrical contacts, are commonly used in appliances that need to be safely immersed in water, Find an expression for the emf induced in the secondary..
White light shines through a diffraction grating and onto a screen, What is the number of lines per (mm) for this grating and What is the number of lines per (cm)
question1a softball of mass m 0.195 kg is pitched at a speed v0 27.3 ms. due to air resistance by time it reaches
An air puck of mass m1 = 0.32 kg is tied to a string and allowed to revolve in a circle of radius R = 1.1 m on a frictionless horizontal table. What is the horizontal force acting on the puck
a pickup truck has a width of 78.6 in. if it is traveling north at 34 ms through a magnetic field with vertical
A stone is thrown vertically upward at a speed of 28.40 m/s at time t=0. A second stone is thrown upward with the same speed 2.570 seconds later. At what height do the two stones pass each other
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