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The graph of braking distance versus car speed is part of a parabola. Thus,the equation is written d=av2b+v+c.
The distance, d,has units in meters, and velocity, v,has units in meters/second. How could you find the units of a, b,and c? What would they be?
In a double-slit experiment, the distance from one slit to the m = 9 bright fringe is 2,000,198.2 λ. What is the distance from this bright fringe to the other, more distant slit?
A container with two moveable pistons is filled with incompressible oil with a specific gravity of 0.8. The larger piston has an area of 10,000 mm2 and on it is a car with weight of 10,000 N and a specific gravity of 2.0.
A parachutist descending at the speed of 25 m/s loses a shoe at an altitude of 50 m. (Assume the positive direction is upward.)
A 7.45-g bullet is moving horizontally with a velocity of +347 m/s, where the sign + indicates that it is moving to the right. What is the velocity of the second block after the bullet imbeds itself
A sphere of radius 8.0 cm carries a uniform volume charge density ? = 500 nC/m3. What is the electric field at r = 20 cm
Which of the subsequent is true about electric fields? Electric fields are scalars, and do not have direction. Electric fields point from low voltage to high voltage.
how long is the eagle in the air?
A 1 cm3 air bubble at a depth of 280 meters and at a temperature of 4 oC rises to the surface of the lake, what is its new volume? How many micromoles (to 1 decimal place) of air are in the bubble
a roller-coaster car has a mass of 504 kg when fully loaded with passengers point a is the bottom portion of roller
Suppose that you pull on the rope OA shown in the figure, exerting a 50 N force F at O. What are the force vectors
A spaceship moves past you at speed v. You measure the ship to be 287 m long, whereas an astronaut on the ship measures a length of 380 m. Find out v.
A 0.200 kg block is placed on a vertical spring (k = 5.00x10^3) and pushed downward, compressing the spring 0.100 m. As the block is free, it leaves the spring and continues to travel upward. What height above the point of release would block reac..
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