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An 8 g bullet leaves a gun at 700 m/s.? what is the maximum height that this bullet could reach
A 20kg box slides 45m from the top down to the bottom of an incline that is 10 degrees to the horizontal. How much work is done by the force of gravity on the box
An object is 12.0 cm from the surface of a spherical Christmas tree ornament that is 8.00 cm in diameter. What is the magnification of the image
A 2inx4inx8ft is leaning against the wall, draw afree-body diagram of forces on it. what would be the minimum angle of the wooden bar with the floor
two point charges are seperated by 10.0 cm and have charges of +2.00uc, What is the electrical field at a point between the two charges
A 100 W lightbulb produces 4.0 W of visible light. What is the light intensity on a wall 3.0 m away from the lightbulb
A 28-turn circular coil of radius 4.20 cm and resistance 1.00 %u03A9 is placed in a magnetic field directed perpendicular to the plane of the coil. Calculate the induced emf in the coil at t = 5.80
In a 290-turn automobile alternator, the magnetic flux in each turn is %u03A6B = 2.50 10-4 cos %u03C9t, Determine the maximum emf in the alternator
Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. What impulse is imparted by this force
A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile), What is its average power output in watts and horsepower
Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car
Suppose you make a new kind of compact disk that is the same thickness as a current disk but twice the diameter
A huge explosion is heard 77.7 miles away. How long does it take the sound to travel that far
The air inside a bicycle tire pump has 172 joules of work done on it as 64.8 joules of heat is conducted away from it
A bungee cord is stretched between two poles with a force of 415 N. What is the velocity of a wave on this bungee cord
A 418 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.7 meters
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 3.6 cubic meters of sea water. What is the buoyant force acting on the object
A 0.058 kg aluminum bullet traveling at 481 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
If the gauge pressure of the blood at your heart is 13.25 kPa and your body doesn't compensate, what would the pressure be at your head, 57.4 cm above your heart
A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. what pressure does each leg exert on the floor
x rays with a wavelength of .12nm undergo first-order diffraction from a crystal at 80 degree angle of incidence
what is the speed of an electron with a de Broglie wavelength of .29nm, What is the speed of a proton with a de Broglie wavelength of .29nm
what is the speed of a 200g baseball with a de Broglie wavelength of .18nm, what is the de Broglie wavelength of a 200g baseball with a speed of 20 m/s
A very small circular metal ring of radius r=0.5cm and resistance x=5ohms is that the center of a large concentric circular metal ring of raduis R=50cm, What is the magnitude and direction of the av
a hydrogen atom is in the n=15 state. In the Bohr model, how many electron wavelengths fit around this orbit