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Q. One mass, m1 = 215g, of an ideal Atwood machine rests on the floor 1.10 m below the other mass, m2 = 255g. 1) If the masses are released from rest, how long does it take m2 to reach the floor? 2) How high will mass m1 ascend from the floor?
Q. Chromium is produced by reacting with its oxide with aluminium. If 304 g of Cr2O3 and 108 g of Al completely react to form 204 g of Al2O3 how many grams of Cr are formed?
A cat, also of weight 47.8 {rm N}, falls asleep on top of block A. If block B is now set into downward motion, what is its acceleration magnitude.
Racing drivers like to warm up the tyres of their car as soon as possible. One reason is that warm tyres grip the road better but the temperature also affects the pressure of the air into he tyres.
Landing on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds.
A winter hiker's body generates heat at a rate up to an utmost value of 126 W. She is hiking on a brisk day in which the outdoor temperature is 9 °C, whilst wearing a jacket with goose down insulation.
Calculate the acceleration on the radio. The rms voltage across a 5.02 Ω resistor is 34.7 V. Find the maximum instantaneous current by the resistor.
Examine whether it is reasonable to ignore the effects of gravity for each particle. Evaluate the paths travelled by electron and proton and explain the differences.
What could you expect the intrusion into the vechicle is, based on this information? Explain how you arrived at this intrusion.
what was the initial speed given to the rock. A light plane is headed due south with the speed of 154 km/h relative to still air. After 1.06 hour, the pilot notices that they have covered only 127km and their direction is not south but southeast (4..
What is the frequency of up and down oscillations of the wheel? Regard wheel as a mass on one end of a spring and regard the body of the car as a fixed support for the other end of the spring.
The acceleration due to gravity on the surface of the moon is about g/ 6. If a pendulum has a period T on earth what will its period be on the moon?
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
A charge of +1 coulombs is placed at the 0 cm mark of a meter stick. A charge of +4 coulombs is placed at the 100 cm mark of the similar meter stick.
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