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If a body is at rest with respect to the sun (Msun=1.99 x 10^30 kg) and is a distance 1.7 x 10^9 m from the sun. What will be its speed when it reaches the sun's surface (r sun = 6.96 x 10^8 m)?
The longest "string" (a thick metal wire) on a particular piano is 2.0 m long and has a tension of 300.0 N. What is the total mass of the wire
A 70 kg astronaut floating in space in a 110 kg MMU (manned maneuvering unit) experiences an acceleration of 0.029 m/s2 when he fires one of the MMU's thrusters. What is the thrust of the thruster
a child tosses a stick into a stream. the stick moves downstream at a rate of 1.5 ms. how fast is the stick moving
A glass sheet 1.40 ?m (micrometer) thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 538 nm and 615.00 nm.
A skier of mass 79 kg is pulled up a slope by a motor-driven cable. What power must a motor have to perform this task
Calculate the UNCERTAINTY of the specific gravity of a liquid given the following information: m = 54.50 +/- 0.05 grams, mA = 33.50 +/- 0.05 grams
A car of mass = 1200kg traveling at 55.0km/hr enters a banked turn covered with ice. What is the radius r of the turn
A photon Compton scatters off of a stationary electron at an angle of 60 °. Determine the initial wavelength of the photon
A small ball of mass 0.50 g has an electric charge of 1.0 X 10^(-5) C. The ball has an initial velocity of 20 m/s, directed vertically upward. Find the maximum height of the ball
a 2.0 kg object is dropped from a 4.0 meter height. Calculate the speed of the ball prior to striking the ground
Some particle accelerators accelerate particles around in circular paths up to speeds very close to the speed of light. Which radius will be advantageous and why?
A mechanic jacks up the front of a car to an angle of 8.0 degrees with the horizontal in order to change the front tires. Calculate the magnitude of the torque excerted by the jack
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