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a 1.5 kg ball falls onto a floor. just before it strikes the floor its velocity is 12 m/s. the ball bounces up with a velocity of 10 m/s. find the impulse on the ball.
q1. a 60 m ladder leans against a wall. what is the minimum force of friction essential to prevent the ladder from
three point charges are arranged in a equilateral triangle of side a= m. Sketch the field lines due to + Q and -Q, What is the x-component of the force
You compress a spring with k = 3000 N/m a distance of 0.2 m with a block of mass 4 kg. hat is the velocity of the block after it leaves the spring but before it gets to the incline
The nucleus of the hydrogen atom has a radius of about 1.1 x 10-15 m. find the percentage of the volume of the atom that is occupied by the nucleus
Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper is placed between them at one edge, Find the angle of the wedge
A boxcar of mass 5.32 x 10^4 kg is rolling south at 3.49 m/s when it collides and couples with another boxcar that is rolling north at 5.12 m/s. Find the mass of the boxcar
A positive charge of Q = 4.60 uC is fixed in place. From a distance of ri = 4.60 cm a particle of mass m = 5.70 g, What is the minumum distance rf between the two charges
The linear density of a rod of length 4 m is given by p(x) = 9 + 2sqrt(x) measured in kilograms per meter, where x is measured in meters from one end of the rod. Find the total mass of the rod.
A 1.1-pF parallel plate capacitor has a potential difference of 12.0 V across it. The plates are 4.5 mm apart, and the space between them contains air. obtain the charge on the capacitor
Two long parallel wires each with a mass per unit length of 25.10 g/m are supported in a horizontal plane by 2.5 cm long strings. Each wire carries the same current, I, causing the wires to repel each other so that the angle between supporting string..
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision
The wavelength of an ocean wave
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