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An automobile engine with an efficiency 0.23 dumps heat to the environment at the rate of 450 kW. Part A What's its mechanical power output in W? Part B What's its mechanical power output in hp? Express your answers to two significant figures and include the appropriate units.
Two forces are acting on an object: 8 N [N22.1 ºE], and 5 N [S 34.8 ºE]. What is the magnitude (in N) of the resultant force acting on the object.
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 car that is traveling at 25.0 m/s is 42.5 m away from a wall. what is the magnitude of the cars acceleration
An electron moving at 4.20 103 m/s in a 1.50 T magnetic field experiences a magnetic force of 1.40 10-16 N. What angle does the velocity of the electron make
An 800 keV photon is Compton scattered at an angle of 30 degrees. Calculate The energy of the scattered photon, The change in wavelength
A generator has a square coil consisting of 320 turns. The coil rotates at 67 rad/s in a 0.34 T magnetic field. What is the length of one side of the coil
questiona white billiard ball with mass mw 1.32 kg is moving directly to the right with a speed of v 2.92 ms and
A camera lens used for taking close-up photographs has a focal length of 23.5 mm. The farthest it can be placed from the film is 33.5 mm. What is the closest object that can be photographed
You are in charge of the construction site of a new dam. Extremely heavy rainfall starts and Bureau of Meteorology hydrologists tell you that beginning at about 8 AM, 2 GL per hour (2 x 10^6 meters^3 per hour) will flow into the dam. The lake behi..
A circular coil of wire with 70.0 Loops and a radius of 0.250 m is placed in a magnetic field of 10.0 T and oriented so that the coil is perpendicular to the field. Find the maximum power developed in the coil
A bullet of mass m = 25 g is fired into a wooden block of mass M = 4.5 kg. The block is attached to a string of length 1.5 m. The bullet is embedded in the block, causing block to then swing.
Consider a piston weighing 990 g which contains 10 g of air at 1 atmosphere and 25?C. Calculate the effects of performing 100 Joule of work on this air-containing piston for the following three situations.
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