A fire hose directs a stream of water against the north wall of a house. The stream is directed southwards and the stream has a speed of 16 m/s. If the water comes out of the hose at rate of 27 kg/s,...

A fire hose directs a stream of water against the north wall of a house. The stream is directed southwards and the stream has a speed of 16 m/s. If the water comes out of the hose at rate of 27 kg/s,...

when do I use the absolute value brackets on the point charge? E = k (q)/r^2 vs E = k |q|/r^2 ?

High School Physics

A astronaut stands on a bathroom scale in a 2 km diameter rotating space station that spins every 62.8 sec

a plastic sphere containing an explosive charge, rolling at 4 m/s undergoes a two dimensional explosion into 3 fragments of equal mass. when viewed from above, one fragment moves at 6 m/s at an angle...

I jumped on a train ride that lasted 4.5 hours and we traveled 360 miles. Calculate the velocity in miles/hour.

I need clear detail of my question: A converging lens has a focal length of 50mm. At what distance from the lens must a point source of light be placed in order that parallel rays emerge from...

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Block A, of mass mA, sits atop of a smooth (frictionless) surface as it is pulled by block B, of mass mB, to which it is connected via a set of light ropes and perfect pulleys. (a) Determine the acceleration...

1) Charges Q1 and Q2 exert repulsive forces of 17 N on each other. What is the repulsive force in Newtons when their separation is decreased so that their final separation is 63 % of their initial...

Chapter 03, Problem 14 A tennis ball is struck and departs from the racket horizontally with a speed of 28.1 m/s. The ball hits the court at a horizontal distance of 19.8 m from the...

Chapter 03, Problem 10 Interactive Learningware 3.1 reviews the approach taken in problems such as this one. A bird watcher meanders through the woods, walking 1.60 km due east, 0.927...

Chapter 03, Problem 03 GO In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0634 s, during which time it experiences an acceleration...

in a thermal pot, there is a layer of vacuum in the outer wall, an inner pot lid and an outer pot lid. Please help me to clarify these questions: 1....

A weightlifter holds a 150 kg weight 2 m from the floor. Calculate the speed which the weight hits the floor when dropped. You may assume that no energy leaves the system, and that the gravitational...

A ball is thrown upward with an initial velocity of 19.6m/s.what is the max height the ball will reach before falling back down? Just want to check if my answer is correct, I ended...

Find the magnitude and direction of the resultant of a 5-N force that acts at an angle of 37? clockwise from the +x axis, a 3-N force that acts at an angle of 180? clockwise from the +x axis,...

How do we have to solve this question?

Derive F = BIL by starting with a single charge formula F = qvB and recognizing that current is simply I = Q/t.

A 2m crowbar is employed to lift a 200 kg load. What force must a man apply to one end of the crowbar when a stone (acting as a fulcrum) is placed under the crowbar 20 cm away from the end on which...