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Charge q1 = 5.35·10-8 C is placed at the origin. Charges q2 = -1.47·10-8 C and q3 = 1.13·10-8 C are placed at points (0.161 m,0 m) and (0 m,0.273 m), respectively. a) Determine the magnitude of the net electrostatic force on charge q3. b) Determine the direction of the net electrostatic force on charge q3 (angle with respect to the positive x-axis).
A worker on scaffolding 65 ft above the ground needs to lift a 340 lb bucket of cement from ground to a point 30 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required.
A 43.0-N child is in a swing that is attached to ropes 1.60 m long. Find the gravitational potential energy associated with the child relative to her lowest position at the following times.
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a highest of 90cm, what was the speed of the bullet at impact with the block.
If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact?
A child slides across a floor in a pair of rubber-soled shoes. Thefriction force acting on each foot is 20.0 N. The footprint area ofeach shoe sole is 14 cm2, and the thickness of eachsole is 5 mm. Find the horizontal distance by which the upper a..
A light spring with a spring constant of 80.0 N/m rests vertically on a table. A 2g balloon is filled with helium (0°C and 1 atm pressure) to a volume of 5.00 m3 and connected to spring, causing the spring to stretch and expand. How much does the ..
Avoiding air resistance, what is the magnitude of the total velocity of the package at the moment it is thrown as seen by an observer on the ground? Answer in units of m/s.
Two narrow slits 50 micrometers apart are illuminated with light of wavelength 500 nm . What is an angle of the m=2 bright fringe in radians? in degrees.
Estimate mean and maximum velocities for a liquid
Find the radius of the largest water drop
A jetliner is moving at a speed of 187 m/s. The vertical component of the plane's velocity is 44.5 m/s. find out the magnitude of the horizontal component of the plane's velocity.
If the ball is free from rest at a height of 0.67 above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? Suppose the ball is a solid sphere of radius 2.2 and mass 0.14.
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