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1. What is the force of gravity on a 1 kg mass ?
2. What energy is needed to lift a 1 kg mass a distance of 3 meters ?
3. What energy is needed to lift you one story in this building ?
4. How high can a 1 kg mass be lifted using 1 kJoule ?
5. How much mass can be lifted 10 meters with a Megajoule ?
6. A car has a mass of 2000 kg. What energy is needed to lift it 100 meters.
7. How many people can be lifted one story with a Megajoule ?
A woman and her dog are out for a morning run to the river, which is located 3.5 km away. The woman runs at 2.4 m/s in a straight line. What is the total distance run by the dog
Find out the frequency of a sound wave moving through iron at 25 degrees Celsius with a wavelength of 0.601m.
A bullet is fired horizontally at 800 m/s and strikes a target that is 160 m from the gun. If the marksman hears the sound of the impact on the target 0.67 s after he fires the gun, what is the speed of sound?
A large plane having uniform charge density has an electric field just outside the plane that points directly toward the plane with magnitude 1.05×104N/C
a square is 1.0 m on a side. charges of 4.0 uc are placed in twodiagonally opposite corners.in the other two corners
A charge of +8.8 micro-coulombs with a mass of 0.56 kg lies on a horizontal surface. What is the amount of the normal force on the charge
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. determine the magnitude of the average angular acceleration of the wheel
A solid ball rolls along the floor with a constant linear speed v. Obtain the fraction of its total kinetic energy that is in the form of rotational kinetic energy about the center of the ball
If the electric field is zero in some region of space, the electric potential must also be zero in that region. If the electric potential is zero at a point, the electric field must also be zero at that point. Electric field lines always point towar..
The mass of a newborn baby's brain has been found to increase by about 1.6 mg per minute. How long does it take for the brain's mass to increase by 0.0075kg
the sound from a very high burst of fireworks takes 4.5seconds to arrive at your eardrums. the burst occurs 1500m above
(a) Water will flow in the pipe and emerges from the point C. It is considered that water flows from depth equal to the d . Here, the equivalent depth of the water is h = d +12: From equation v = gh , the speed of the water is v= = 4g(oi -012 )
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