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What fraction of energy will be lost when a moving cart of mass m inelastically collides with a stationary cart of mass 2m?
You have a spring attached to the bottom of a container. The spring is aligned vertically. The container is filled with water (density 1.0 x 103 kg/m3). How much does the block compress the spring
What is the regular pressure on the soles of the feet of a standing80.7-kg person due to the contact force with the floor? Each foot has a surface area of 0.021 m2.
Multiple-Concept Example 10 provides one model for solving this type of problem. Two wheels have the same mass and radius of 4.2 kg and 0.39 m, respectively. Find the net external torque that acts on each wheel
An electron acquires 100 fj of kinetic energy when it is accelerated between two parallel plates at a distance 1 millimeter, estimate magnitude of the electric field between the plates
Displacement is which of the following types of quantities.
A boy gets ready to slide down an icy hill with his sled.Assume that the friction from the ground is negligible. How far will the boy have slid after 3 seconds with that acceleration
consider two identical insulating spheres of radius r and uniform charge q throughout their volume. they are separated
A 160(ohm) resistor is in series with a 8.00×10^-2 H inductor and a 0.400uF capacitor. compute the phase angle of the source voltage with respect to the current
A stone is dropped from a cliff; 2.08 s later another stone is thrown downward with an initial speed of 31 m/s. Find the height of the cliff
A diffraction grating produces a first order bright fringe that is 0.226 m away from the central bright fringe on a flat screen which is 0.675 m away. What is the wavelength of the light shining on the grating
An electron is confined in a one-dimensional box (an infinite well). Two adjacent allowed energies of the electron are 1.068 × 10-18 J and 1.352 × 10-18 J. What is the length of the box
A 4.9 kg cart is placed on a frictionless air track with an angle of 47.6o. A 24.2 kg mass is attached to the cart using a massless string draped over the end of a frictionless pulley at the top of the track. What is the expected acceleration of the ..
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