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Q. A horse canters away from its trainer in a straight line, moving 150m away in 14 sec. It then turns abruptly and gallops halfway back in 4.5 sec. calculate
(i) its average speed and
(ii) its average velocity for the entire trip, using "away from the trainer" as the positive direction. Show the work.
A barbell consists of two small balls, each with mass 600 grams (0.6 kg), at the ends of a very low mass rod of length d = 20 cm (0.2 m). The center of the barbell is mounted on the end of a low mass rigid rod of length b = 0.3 m, and this rod rot..
Given that 12g of carbon combines with 16g of oxygen to form carbon monixide, how various grams of carbon monoxide can be made from 48g of carbon and 48g oxygen.
An airplane needs to reach a velocity of 402km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary for the plane to take flight.
A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value.
A 7.40-nC charge is positioned 1.70 m from a 4.80-nC charge. (a) Find the magnitude of electrostatic force that one particle exerts on the other. (b) Is the force attractive or repulsive.
What is magnitude of the net force on the student
What is the horizontal distance between elbow and the point where the weight of the forearm acts.
A box is sliding up an incline that makes an angle of 27.7 ° regarding the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.113. The initial speed of the box at the bottom of the incline is 2.27 m/s...
Coefficient of kinetic friction between tires and road
A train is travelling up a 3.2 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast. How long does it take for the last car to come to rest.
use the inverse square law to display that in space shuttle territory, 200 kilometers above earth's surface, the force of gravity on a shuttle is about 94 percent of that at earth's surface.
Two sound sources radiating in phase at a frequency of 580Hz interfere such that maxima are heard at angles of 0 and 24 from a line perpendicular to that joining the two sources. Find out the seperation between the two sources. The velocity of sou..
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