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Question: Two runners start simultaneously from the same point on a circular 200m track and run in opposite directions. one runs at a constant speed of 6.2m/s and the other runs at a constant speed of 5.5 m/s. When they first meet.
A) How long will they have been running?
At one instant a bicyclist is 35.0m due east of a park's flagpole, going due south with a speed of 20 m/s. Then, 19 s later, the cyclist is 60.0 m due north of the flagpole, going due east with the speed of 11 m/s. For the cyclist in this 19s inte..
A helium atom (m= 6.6465 x 10^-27 kg) collides elastically with an oxygen atom (m = 2.6560x10^26kg) at rest. Find the speed of the oxygen atom
Two identical cylinders (except for their volumes) at the same temperature each contain the same kind of gas and the same numberof moles of gas. If the volume of cylinder A is 6 times greater than the volume of cylinder B,what can you say about the r..
The atmospheric pressure at sea level is about 1.0 multiplied by 105 Pa. What is the force at sea level that air exerts on the top of the typical office desk, 159cm long and 86 cm wide?
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. Estimate the length of the lake
a what is the pressure at a depth of 5000 m in the ocean?b what is the fractional volume changenbsp? vv of seawater at
A 990-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, What was the speed sports car at impact
A grasshopper makes four jumps. The displacement vectors are (1) 25 cm, due west; (2) 23.5 cm, 50° south of west; (3) 24.5 cm, 56° south of east; and (4) 36 cm, 43° north of east. Find the magnitude and direction of the resultant displacement. Expres..
How much voltage is produced by an inductor of value 25 ?H if the time rate of change of the current is 58 mA/s
the workman wants to push a box up a 20.0 degree incline. if it takes 70 newtons of force to start the box moving how
A proton enters the gap between a pair of metal plates (an electrostatic separator) that produces a uniform, vertical electric field between them. Ignore the effect of gravity on the proton.
Only two forces act on an object (mass=4.61 kg), as in the drawing. Find the direction (relative to the x axis) of the acceleration of the object
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