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A 10.8 gram bullet is fired horizontally into a 100 gram wooden block initially at rest on a horizontal surface. After impact, the block slides 7.5 meter before coming to rest. If the coefficient of kinetic friction between surface and block is 0.650, obtain what the speed of the bullet before impact? m/s
A hydrogen atom in its ground state is excited to the n = 5 level. It then makes a transition directly to the n = 2 level before returning to the ground state. What are the wavelengths of the emitted photons
A convex mirror has a focal length of -20 cm. What is the position of the resulting image in cm if the image is upright and one-fourth the object size
Starting from one oasis, a camel walks 25 km in a direction of 30 degrees south of west and then walks 30 km toward the north to a second oasis. What is the direction from the first oasis to the second oasis?
A block of mass m = 2.10 kg is pushed a distance d = 4.20 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N, Determine the work done on the block by the applied force
One kilogram of water vapor (as an ideal gas) is filled in a frictionless piston-cylinder assembly. The piston can move freely in the cylinder and it is in surroundings of 1 atm. Determine the heat transfer for the process
A small sphere with a charge of -5.9 10-7 C is placed in a uniform electric field of magnitude 1.9 106 N/C pointing to the west. What is the magnitude and direction of the force on the sphere due to the electric field?
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. Find the peak magnetic field strength
An arteriole has a length of 1.03 mm and a radius of 24.7 %u03BCm. Calculate the resistance of the arteriole
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, 41.30 cm in front of it, Calculate the mirror's radius of curvature
a certain toaster has a heating element made of nichrome resistance wire. when the toaster is first connected to a 120
When the space shuttle (mass of the shuttle=2*10^6kg) was at the outer limit of Earth's atmosphere (distance= 350km above Earth's surface), astronauts measured the gravitational force from Earth to be equal to 1.7*10^7 newtons. Find the gravitatio..
A novice skier, starting from rest, slides down a frictionless 35.0 Degrees incline whose vertical height is 185 m. How fast is she going when she reaches the bottom
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