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A man on a 50 m high cliff throws a rock vertically. The rock falls back down past theedge of the cliff and hits the ground 5 s after it was thrown.
a) What was the velocity with which the rock was thrown?
b) How high doesthe rock go above the cliff top before falling down?
c) When, inseconds, is the rock at the peak of its trajectory?
In open heart surgery a much smaller amount of energy will defibrillate the heart, What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 55.0 J of energy
Sodium carbonate, a base, can be used to standardize an acid. A 0.263 g sample of sodium carbonate requires 28.35 mL of aqueous HCl for titration to the equivalence point. What is the concentration of the HCl? Help?
A parallel-plate capacitor has plates of area .5 m^2 separated by a distance of 2.0 mm. What is this capacitor's capacitance
An electric oscillator is made with a capacitor and a 1.0 mH inductor. The capacitor is initially charged to 5.0 V. Part A What is the maximum current through the inductor as the circuit oscillates?
A piece of plastic has a net charge of +2.00 uC. How many moreprotons than electrons does this piece of plastic have?
When ultraviolet light with a wavelength of 250 nm is incident on a particular metal surface, What is the threshold frequency for this particular metal
Two identical clocks are set to 12 noon time when on the ground at rest relative to the ground. What will the moving clock read if the first clock reads 6 p.m.
Your starship, the Aimless Wanderer, lands on the mysterious planet Mongo. how many hours will it take the ship to complete one orbit
What should be coefficient of static friction
a roller coaster car is at the top of a "loop-de-loop" and is at the point where it is upside down. Why is there no outward force on the car
If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.95 T field (perpendicular to the wire), what force is exerted on this segment of wire
A carbon sample of the same size taken from a fresh piece of bone emits 16 beta emissions a minute. How long ago did the saber-tooth tiger live?
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