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A 0.060-kg cart has a spherical dome that is charged to +1.0 x 10-5 C. The cart is at the top of a 2.5 -m-long inclined plane that makes a 30? angle with the horizontal. The cart and the plane are placed in an upward-pointing vertical uniform 3700-N/C E→ field.
How long will it take the cart to reach the bottom of the plane?
question1a playground merry-go-round of radius r 1.80 m has a moment of inertia i 255 kg.m2 and is rotating at 8.0
A charging bull elephant with a mass of 5240kg comes directly towards you with a speed of 4.55m/s.You toss a 0.150-kg rubber ball at the elephant with a speed of 7.81m/s. (a) when the ball bounces back toward you,what is its speed?
"When reading the printout from a laser printer, you are actually looking at an array of tiny dots. If the pupil of your eye is 2.1 mm in diameter when reading a page held 33 cm from your eye, what is the minimum separation of adjacent dots that c..
q1. a 3.10-m-long 310 kg steel beam extends horizontally from the point where it has been bolted to framework of a new
How much force does a 150,000 N/C force exert on a deuteron.
The force of an explosion on the piston of a gasoline engine is due to the change of momentum of the gas particles. What must be the speed of the molecules of gas after the explosion
1 although all atoms have moving electric charges not all materials are magnetic for example copper or wood are not
A straight, vertical wire carries a current of 1.28 amp downward in a region between the poles of a large superconducting electromagnet, Determine the magnitude of the magnetic force on a section of the wire with a length of 1.00 centimeter that is..
A solenoid with 1000 turns has a cross-sectional area of 7.0cm2 and a length of 25cm. how much energy is stored in the magnetic field of the solenoid
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
A 34.3 kg child starting from rest slides down a water slidewith a vertical height of 20.7 m. What is the child's speed halfway down the slide's vertical distance?----m/s What is the child's speed three-quarters of the waydown?---m/s
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.20 x 106 m/s. Compute the force acting on the electron as it revolves in a circular orbit of radius 5.30 x 10-11 meter
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