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Two trains are traveling toward each other at a constant speedof 10 miles/hr. At the point where the trains are 20 milesapart, a fly traveling a constant speed of 30 miles/hr. flies backand forth between the trains. What is the distance the fly traveled?
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. what is your speed after the collision
consider a 50.0 g ice cube placed in a container containing 200 g of water. the water is initially at 25.0 c and the
A vertical straight wire carrying an upward26-A current exerts an attractive force per unit length of 7.3×10?4N/m, What is the direction of the current in the second wire?
When additional mass is added to the piston, the height of the piston decreases to 16.4 cm. Find out the new pressure applied by the piston.
A horizontal wire of length 0.59 m, carrying a current of 8.1 A, is placed in a uniform external magnetic field. When the wire is horizontal, it experiences no magnetic force.
A hollow, spherical shell with mass 1.90kg rolls without slipping down a slope angled at 40.0 degree. Part A Find the acceleration. Take the free fall acceleration to be g = 9.80m/s^2 Part B Find the friction force. Take the free fall acceleration to..
a gas mixture contains 1.29 g n2 and 0.93 g o2 in a 1.49- l container at 23?.1. calculate the mole fraction of n2.2.
A 73kg human sprinter can accelerate from rest to 12m/s in 3.2s . During the same interval, a 31kggreyhound can accelerate from rest to 19m/s. Compute the average power output for each
After placing the iron (0.750 kg) in the fire and shaping it, it is still at 200 C. He puts the piece in 8 L bucket of water at 25 degree celsius. What is the final temperature of iron
Assume that plane continues to fly with the similar velocity
A cooling fan is turned off when it is running at 880rev/min . It turns 1000 revolutions before it comes to a stop. What was the fan's angular acceleration, assumed constant
Two boats start together and race across a 56-km-wide lake and back. Boat A goes across at 52 km/h and returns at 56 km/h. Boat B goes across at 36 km/h, and its crew, realizing how far behind it is getting, returns at 79 km/h. Turnaround times are n..
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