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About 27% of the body of a person floating in the Dead Sea will be above the water line. Assuming that the human body density is 1.01 g/cm3, find the density of the water in the Dead Sea.
When you walk toward a mirror you see your image approaching you. If you walk at 2 m/s, how fast do you and your image approach each other
A 10 kg crate is pulled up a 30 degree incline with a rope parallel to the incline. The tension in the rope is 100 N. what is the acceleration of the crate up the incline
Light moving from glass to air changes wavelength from 448.5 nm to 653.7 nm. find the frequency of the light in air
A circuit contains six 205 ohm lamps with 60 W bulbs and a 9 ohm heater connected in parallel. voltage across the circuit is 120 V.what is the current in the circuit when four lamps are turned on.
The specific heat of granite is 0.80 kJ/kg x C. If 106 MJ of heat are added to a 100-kg granite statue of James Prescott Joule that is originally at 18 degrees C
Blocks with masses of 2.0 , 4.0 , and 6.0 are lined up in a row on a frictionless table. All three are pushed forward by a 57 N force applied to the 2kg block.How much force does the 4 block exert on the 6.0 block.
An AC generator supplies an rms voltage of 220 V at 50.0 Hz. It is connected in series with a 0.600 H inductor, a 5.10 ?F capacitor, What is the average power dissipated in the circuit
A 200 kg bucket of cement is accelerated upward by a force of 2200 N. the acceleration continues for 5 s. the power needed at the end of this period is
A galaxy has a rotation speed of 200 kilometers per second at a distance from its center of 10 kiloparsecs What is its mass within this distance
A 0.420 kg ice puck, moving east with a speed of 3.12 m/s, has a head-on collision with a 0.890 kg puck initially at rest. Assuming a perfectly elastic collision, What is the speed of the heavier puck
A Federation star ship (2.0×10^6 kg) uses its tractor beam to pull a shuttlecraft (2.0×10^4 kg) aboard from a distance of 10.0 km away. The tractor beam exerts the constant force of 2.50 X 10^4N on the shuttlecraft. Both spacecraft are initially a..
A 220g ball is thrown horizontally at 19.2m/s, As it falls under the influence of gravity, find its final momentum (magnitude) after 1.00s.
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