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You and Maria each own identical spaceships. As you fly past Maria, you measure her ship to be 96 m long and your own ship to be 100 m long. How long does Maria measure your ship to be? How fast is Maria moving relative to you?
Which of the following photons has the greatest energy?
The dielectric in a capacitor serves two purposes. It increased the capacitance, compared to an otherwise identical capacitor with an air gap, What is the maximum energy that can be stored if the plates are separated by a 0.50-mm-thick Teflon sheet
A worker is pulling a cart. The frictional force between the cart and the ground is 500N. What is the minimum force that must be applied by worker to move the cart.
A person with a mass of 80kg stands on two snowshoes with areas of 2500cm^3 each. What is the total pressure on the snow
A very slow neutron with negligible kinetic energy is captured by a 11B (boron-11) nucleus, which ends up in its ground state. Calculate the wavelength of the photon given off
A small block of mass 0.97 kg slides without friction on a horizontal table. Initially it moves in a circle of radius R0 = 0.52 m with a speed 1.3 m/s. What is the final speed of the block
What is the period of this pendulum in the small angle approximation.
a 0.55 kg mass sliding on a horizontal frictionless surface is attached to one end of a horizontal spring with k 850
Light from a sodium lamp (lamda=589 nm) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm. What is the spacing (in mm) between the two slits
A 16 kg child slides down a 3.1 m-high playground slide. She starts from rest, and her speed at the bottom is 2.4 m/s. What is the change in the thermal energy of the slide
A 1590 kg car has just passed a diner. The closest the car came to the diner was R = 12.5 m, find the current magnitude of the angular momentum of the car about ther dinner
Calculate the time it takes the sled to travel 21 m down the slope and draw a free-body diagram for the sled sliding down the slope.
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