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What is the specific heat of a metal substance if 128 kJ of heat is needed to raise 6.1 kg of the metal from 20°C to 30°C?
in reaching her destination a backpacker walks with an average velocity of 1.34 ms due west. this average velocity
A quarter, having a radius of 1 cm. and a thickness of 1.3 mm., is placed in a uniform E field of 6300 N./C. What is the net positive charge on one of the faces of the coin
A Bullet of mass 14g strikes a block of mass 1.2kg, which is at rest on a horizontal frictionless surface and is attached to a coil spring shown. Find the velocity of the block just after impact
An ant travels in a perfectly straight line in the –x direction some distance. It turns, and then travels some new displacement, 30.0O above the +x axis, again, in a straight line, for some distance. The final leg of its little ant journey is a displ..
Apply those results to get how much slower a clock goes near the earth than one, which is higher up.
A collimated gamma ray beam consists of equal numbers of 0.1 MeV and 1.0 MeV photons. If the beam enters a 5 cm thick lead shield, what is the relative portion of 1 MeV photons to 0.1 MeV photons in the emergent beam? State the source of all values u..
A space vehicle is coasting at a constant velocity of 23.5 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.395 m/s2 in the +x directio..
An 85 kg linebacker is running at 8 m/s directly toward the sideline of a football field. Determine their common speed and direction immediately after they collide
A block with a mass of 8 kg is at rest on a horizontal surface. The coefficiant of static friction between the block, What is the magnitude of the frictional force on the block
What is the temperature
A flask containing 800 g. of water is heated. If the temperature of the water increases from 27 degrees Celsius to 88 degrees Celsius, how much heat (in joules) did the water absorb.
One of the contests at the school carnival is to throw a spear at an underwater target lying flat on the bottom of a pool. The water is 1.10m deep. At what angle below horizontal should you throw the spear
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