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The acceleration of gravity on Mars is 37 m/s2. If anastronaut can jump upward 20cm on the earth's surface, how high could he jump on the surface of Mars?
A 1.0 mW HeNe laser with wavelenght 633 nm is shown on a metal. The photocurrent is reduced to zero with stopping potential of 0.50 volts, What is the work function of the metal and what is the cutoff wavelength
lens forms an image of an object. The object is 16.0 cm from the lens, What is the focal length of the lens? Is the lens converging or diverging
A 3.0kg block rests on a tabletop. A 6.00 g bullet moving horizontally with a speed of 180 m/s is shot into the block and sticks in it. Find the speed of block just after full impact
Earth is about 150 trillion meters from the Sun, while Mars is about 230 trillion meters from the Sun. What is the gravitational force between Mars and Earth
An object with height of 5 cm is placed 30 cm away from a diverging lens with focal length f = - 20 cm. Find the location and height of the image. What it the lateral magnication? Is the image upright or inverted? Real or virtual? Use a ruler to draw..
A 2.0 kg mass is projected from the edge of the top of a 20mtall building with a velocity of 24m/s at some unknown angle abovethe horizontal. find the kinetic energy of the mass just before it strikes the ground
A coil has an inductance of 0.05 H and a resistance of 52 O. The coil is connected to a 6.0-V battery. After a long time elapses, the current in the coil is no longer changing. What is the rate of energy dissipation in the coil
You have three resistors with values 3.7?, 2.8?, 5.1?, and a battery of 3.6V. You begin by connecting the three resistors in parallel, What is the magnitude of the current in the 2.8 resistor
The buildup of plaque on the walls of an artery may decrease its diameter from 1.0cm to 0.85cm. Find the speed of blood flow within the plaque region
A 0.347-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
A 1000.0 kg car traveling at 50.0 miles per hour on a long, What was the average coefficient of sliding friction between the car's tires and the road
The inner and outer surfaces of a cell membrane carry a negativeand positive charge, respectively. evaluate the magnitude of the electric field in the membrane
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