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High speed stroboscopic photographs show the head of a 215g golf club traveling at 51m/s just before it strikes a 46g golf ball at rest on a tee. After thecollision, the club travels (in the same direction) at 38m/s. Use the law of conservation of momentum to find the speed of the golf ball just after impact.
an infinitely long line of charge has a linear charge density of 3.00times10-12 . a proton is at distance 17.0 cm from
the speed of a nerve impulse in the human body is about 100 ms. if you accidentally stub you toe in the dark estimate
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
Determine magnitude of the force
A 15-kg block rests on a level frictionless surface and its attached by a light string to a 5.0-kg hanging mass, What is the tension in the connecting string
A motorcycle, which has an initial linear speed of 9.7 m/s, decelerates to a speed of 2.6 m/s in 3.6 s. Each wheel has a radius of 0.69 m and is rotating in a counterclockwise (positive) directions. What is (a) the constant angular acceleration (in r..
A 1000 {rm kg} wrecking ball hangs from a 15 {rm m}-long cable. The ball is pulled back until cable makes an angle of 25.0^circle with the vertical. By how much has the gravitational potential energy of the ball changed .
a square loop of wire with sides of length 40 cm is in a uniform magnetic field perpendicular to its area if the
A Two balloons of identical volume (radius 11.5 m) are filled with gas. The first with helium, the second with hydrogen (H2) gas. What is the lift created by each one
In a physics lab experiment for the determination of moment of inertia, a team weighs an object and finds a mass of 2.98 kg. They then hang the object on a pivot located 0.163 m from the object\'s center of mass and set it swinging at a small ampl..
a wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 39 at 20degc. if its resistance increases
When a 2.20-kg object is hungvertically on a certain light spring described by Hooke's law, the spring stretches 3.11 cm. What is the force constant of the spring?
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