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A 5.01E+4 kg space probe is traveling at a speed of 12600 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 3.85E+5 N over a distance of 2420 km. What is the final speed of the probe?
A screen with a double-slit with a slit separation of 0.03 mm is illuminated by light of a wavelength 600nm. What is the distance from the slit to the screen in meters
You may also assume that v_0 gg sqrt{2gL}, so that the change in hammer's gravitational potential energy, as it drives the nail into the block, is insignificant.
A rectangular block of ice 9.00m on each side and 1.6 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3.
Mars Rover When the Mars rover was deployed on the surface of Mars in July 1998, radio signals took about 14 {rm min} to travel from Earth to the rover. How far was Mars from Earth at that time.
A gymnast does a one-arm handstand. The humerus, which is the upper arm bone (between the elbow and the shoulder joint), What is the compressional strain of the humerus
A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, plates are disconnected from the battery. define the behavior of the ball.
The current in a 100 watt lightbulb is 0.770 A. The filament inside the bulb is0.190 mm in diameter, What is the current density in the filament
An autographed baseball rolls off a 0.64m high desk and strikes the floor 0.61 m away from the desk. How fast was it rolling on the desk before it fell off? The acceleration of gravity is 9.80 m/s^2.
A hot iron horseshoe (mass = 0.50- kg) which has just been forged, is dropped into 1.45 -L of water in a 0.50 kg iron pot at first at 22oC. If the final equilibrium temperature is 32oC, calculate the initial temperature of the hot horseshoe (in Ce..
An open-open organ pipe is 67.9 cm long. AN open-closed pipe has an essential frequency equal to the third harmonic of the open-open pipe. How long is the open-closed pipe.
submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of 20 degree above the horizontal and the echo took 3.04s to get back to the submarine What is the object's depth?
You hold a spherical salad bowl 90 cm in front of your face with the bottom of the bowl facing you. The salad bowl is made of polished metal with a 35 cm radius of curvature. What is the image (your face's image) distance along the central axis fr..
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