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The owner of a van installs a rear-window lens that has a focal length of -0.330 m. When the owner looks out during the lens at an object located directly behind the van, the object appears to be0.260 m from the back of the van, and appears to be 0.360 m tall.(a) How far from the van is the object actually located, and (b) how tall is the object?
a plate capacitor has a spacing between its plates of 5.0 mm and a potential difference of 3.0 103 v across its plates.
On a cool morning, when the temperature is 15deg Celsius, you measure the pressure in your car tires to be 30 psi. After driving 20 mi on the freeway, temperature of your tires is 45 deg Celsius. What pressure will your tire gauge now show.
A charged particle A exerts a force of 2.69 ?N to the right on charged particle B, when the particles are 14.0 mm apart. Particle B moves straight away from A to make the distance between them 17.0 mm. What vector force does it then exert on A?
A 36.5 kilogram box initially at rest is pushed 5.35 meter along a rough, horizontal floor with a fix applied horizontal force of 130 Newton. Calculate the change in kinetic energy of the box
A steel ball with a mass of 50.0g is dropped from a height of 2.30m onto a horizontal steel slab. The ball rebounds to a height of 1.40, Calculate the impulse delivered to the ball during the impact
1. having already defined center of gravity in the laboratory exercise question why does the center of gravity move in
A 4.4-nF parallel plate capacitor with a sheet of Mylar (? = 3.1) filling the space between the plates is charged to a potential difference of 180 V and is then disconnected. (The initial capacitance including the dielectric is 4.4 nF.)
A kid balances on a pogo stick. His mass combined with the mass of the pogo stick is 22kg. How much pressure does the pogo stick put on the ground
A dockworker applies a constant horizontal force of 85.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
two stationary positive point charges charge 1 of magnitude 3.15nc and charge 2 of magnitude 1.75nc are separated by a
Shown on the right is large block 17.0 cm wide, 16.0 cm long, and 27.00 cm high of mass 2.55 kg. This block is passing through air (density ?air = 1.43 kg/m3). Calculate the terminal velocity of the block if it is traveling downward with a drag coeff..
The cliff divers of Acapulco push off horizontally from rock platforms about 35m above the water, What minimum pushoff speed is necessary to clear the rocks
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