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A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. (a) (5 pts) How much energy was lost in the collision? (b) (5 pts) Calculate the average force exerted on the block assuming that the impact time is 10-4s. (c) (5 pts) To what maximum height will the block rise above its initial position?
Identifcal 2.0uC charges are placed on the vertices of a square with sides that are 2.0m in length. Determine the electric potential at the center of the square
A 7430-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. Find the work done by the gravitational force
Electrons are ejected from a certain metallic surface with speeds ranging up to 4.2 105 m/s when light with a wavelength of ? = 615 nm is used. What is the work function of the metal?
Two masses, M1=20.00 kg and M2=12.00 kg, are 50.00 m apart. Find the location of center of mass of the two masses
A roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at -7.0 meters per second2 to a full stop
For the two conducting balls as described in problem 1, when one ball is attached to a torsion balance the wire is twisted by a torsional angle of 1°. find the torsion constant of the wire
A small 15{rm g} bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction.
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.81 m, Calculate the power emitted by the human body
The brakes on your automobile are capable of creating a deceleration of 5.2 m/s2. what is the minimum time in which you can get your car under the 69 km/h speed limit
A solid sphere rolls without slipping or sliding along a horizontal surface toward an incline. Calculate the kinetic energy of sphere as it rolls along the horizontal surface
Since it is a known fact that light transmits energy and that bright lights transmits more energy than dim light, do interference effects violate conservation of energy and why?
A sugar solution with n=1.42 contains an air bubble of radius1.00 cm. Where is the image of a sugar crystal 3.00 cm from the bubble's surface when viewed through the center of the bubble? Does the bubble behave like a converging or diverging lens?
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