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1. A 2.05 kg object is held 3 m above the ground. Its potential energy relative to the ground is
A) 8 J.B) 20 J.C) 60 J.D) 80 J.E) none of the above
2. Which has greater kinetic energy, a car traveling at 30 km/h or another car of 2/3 the mass traveling at 60 km/h?
A) the 30-km/h carB) the 60-km/h carC) both have the same kinetic energy
A garden hose has an internal diameter of 1.5 cm. It's connected to a sprinkler that consists merely of an enclosure with 14 holes, At what speed does it leave the sprinkler
The motion of the block from point A to point B
a 1.0-cm-tall object is 20cm in front of a converging lens that has a 10cm focal length. use ray tracing to find the
A 1.0- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 6.0- cm radius. How far apart are the masses of the dumbbell
A 5000 Ω resistor and a 50 μF capacitor are connected in series at t=0 with a 6 Volt battery. Find the maximum charge stored on the capacitor
a boy of mass 50.5 kg is initially on a skateboard of mass 2.00 kg moving at a speed of 10.3 ms. the boy falls off the
A man starts form rest at the top of a frictionless spherical surface and slides into water before. Find at what angle does the person leave the surface
Two charges, one is + 21 nC and other is -2 x 21 nC are separated by 1 meter distance. Find the electric field at the midpoint of the line joining the charges
A tourist in Yellowstone National Park takes a photograph of a buffalo that is 40 meter away and 2.2 meter tall. find how large is the image of the buffalo on the film
an electric dipole consisting of charges of magnitude 4.10 nc separated by 5.10 microm is in an electric field of
a 5.00-a current run throug a 12-guege copper wire diameter 2.05 mm and through a light bulb. copper has 8.5x1028 free
two narrow slits are illuminated by a laser with a wavelength of 545 nm. the interference pattern on a screen located x
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