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Someone steps on your toe, exerting a force of 300 N on an area of 1.1 cm2. What is the average pressure on that area in atm?
atm
A person can survive a feet-first impact at the speed of about 12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil; and 34 m/s (76 mi/h) on water. Why are there different values for different surfaces.
A 26 g bullet moving a horizontal velocity of 370 m/s comes to a stop 9.3 cm within a solid wall. What is the change in the bullet's mechanical energy
Find the magnitude of the acceration of each block. what is the magnitude of the average force exerted on the ball by the wall.
03.3 A boat is heading upstream when a float is dropped overboard and carried downstream. What is the boat's speed in still water?
A wheel 55-cm in diameter accelerates uniformly from 240 rpm to 395 rpm in 5.0 s. How far will a point on the edge of the wheel have travelled in this time.
A thin film of oil (n = 1.29) is located on smooth, wet pavement. What is the minimum thickness of the oil film
AM radio signals have frequencies between 550 kHz and 1600 kHz (kilohertz) and travel with a speed of 3.0×108m/s. What are the wavelengths of these signals
A particle has a charge of +1.7 %u03BCC and moves from point A to point B, a distance of 0.29 m. Find the magnitude of the electric force that acts on the particle
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. What impulse was given to the ball by the floor
In a series R-L-C circuit, R = 280? , XC = 240?and XL = 600? . The average power consumed in the resistor is 60.0W, What is the power factor of the circuit
A 3.0 block of wood sits on a table. A 3 bullet, fired horizontally at a speed of 440, goes completely by the block, emerging at a speed of 180.What is the speed of the block immediately after the bullet exits.
In a material having an index of refraction n , a light ray has frequency f, wavelength ?, and speed v. What is the frequency of this light in vacuum and in a material having refractive index n1
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