Three charged particles are located at the corners of an equilateral triangle as shown in the figure below (let q = 1.40 µC, and L = 0.430 m). Calculate the total electric force on the 7.00-uC charge. magnitude If you calculate the magnitude of the force that each charge exerts on the 7.00 µC charge, the net charge can then be found from the vector sum of those forces. N direction ° (counterclockwise from the +x axis) 7.00 μC 60,0° -4.00 μC Ο

Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.026 m in the same way as neutrons and protons are packed together in the nucleus of an atom. (a) Approximately how many neutrons would fit inside the ball? (b) A small object is placed 3.7 m from the center of the neutron-packed ball, and the ball exerts a gravitational force on it. When the object is released, what is the magnitude of the acceleration that it experiences? Ignore the gravitational force exerted on the object by the earth.

Using the alternate form of Newton's second law, compute the force (in N) needed to accelerate a 1,100 kg car from 0 to 15 m/s in 11 s. The change in momentum is the car's momentum when traveling 15 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)

How much energy is required to move a satellite of mass 1000 kg from the surface of the Earth to an altitude 3 times the radius of the Earth? Compute the energy in joules.

The planet jupiter is roughly 318 times more massive than the planet earth, and it orbits at an average radius of 5.24 times the orbital radius of the earth. Assuming circular motion of both planets about the sun, find: (a) The ratio of the gravitational forces Fe and Fj on the planets due to the sun. (b) Find the ratio of the orbital periods TE to Tj (c) How long is Jupiter's year, measured in earth years

If a planet with 7.5 times the mass of Earth was traveling in Earth's orbit, what would its period be (in years)? yr

Two plane polar coordinates have the coordinates (2.2,48.3 °) and (4.6,10.50 ), calculate the distance between.

Back when I was a kid, I loved to play with my Hot Wheels. Hot Wheels are miniature metal cars that race down lengths of flexible track. The track comes in segments that can be connected together. One thing you can do is make the cars Loop the Loop, as shown in the figure above. Starting at a height, h, the cars race down the track, traverse a circular loop of radius, R, without falling down at the top of the loop, and then continue racing along a section of level track. If the loop is 9 inches in diameter, what is the minimum height, h, from which the cars can start and still loop the loop without falling down at the top? Neglect friction and air resistance.

If a baseball (m=.450 kg) is thrown up with a velocity of 8 m/s, how many meters high will it reach?