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One cubic meter (1.00m^3) of aluminium has a mass of 2.70*10^3 kg, and 1.00 m^3 of iron has a mass of 7.86*10^3 kg. Discover the radius of a solid aluminium sphere that will balance a solid iron sphere of radius 2.00 cm on an equal arm balance.
A 3.0 kg block rests on a 30° slope and is attached by a string of negligible mass to a solid drum of mass 0.80 kg, What is the coefficient of friction between block and slope
An electric field applies a force of 9.11x10^-16 N to an electron emitted from a cathode of a cathode ray tube at essentially zero velocity
A toy car with a mass of 120 g moves to the right with a speed of 0.62 m/s. A small child drops a 21.0-g piece of clay onto the car, What is the change in speed of the car
If the torque required to loosen a nut on the wheel of a car has a magnitude of 33.1 N · m, what minimum force must be exerted by a mechanic
Astronaut Buzz throws a ball horizontally on the planet SeeSUN with a speed of 5.25m/s. the ball falls through a vertical distance of 1.92m and lands a horizontal distance of 16.4m from the astronaut. what is the acceleration due to gravity on SeeSun..
What is the tension in the string
A slab of copper of thickness b = 6.944×10-1 mm is thrust into a parallel-plate capacitor of C = 7.00×10-11 F of gap d = 5.0 mm, How much work is done on the slab as it is inserted
A long straight wire carries a current of 6.2 A. The wire is horizontal in the plane of the page (screen) and the current is traveling to the left. Calculate the force that acts on the electron
Your textbook has a mass of 2 Kg. Its dimensions are 28 cm by 23 cm by 3 cm. It is standing right side up on your book shelf resting on the smallest area. Calculate the pressure the book applies on the table in Pascals.
A 45-kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 25 degrees , At what angle does the crate begin to slide
Mass of the earth is 5.97 x 1024 kilogram. The radius of its orbit around the Sun is 1.5 x 1011 meter. The orbiting period is 1 y (365.3days). Find the force (magnitude and direction) between the Sun and the Earth
You discover that in an alternate universe all the laws of physics are similar except the charge on a electron is -0.9999e and charge of a proton is +e. Now consider two spheres of copper each of mass 1.0 kg. What is the total charge on the spheres?
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