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An object with mass 1.2 kg slides down a smooth ramp. Initial height is 2m. It is a smooth horizontal track (no friction). If a spring with elastic constant k=3 E4 N/m is placed on the horizontal track, by how much is the spring compressed by the object?
An air parcel moves northwards and becomes entrained in a strong westerly flow, circling the entire globe in the space of a few weeks. State the name given to this high-level flow and define briefly how its structure is related to lateral and vert..
The sound travels through the left tube LXM, which has a fixed length. Concurrently, the sound travels through the right tube LYM, length of which can be changed by moving the sliding section
a man with mass m1 61 kg stands at the left end of a uniform boat with mass m2 168 kg and a length l 2.6 m. let the
A 4.25g bullet traveling horizontally with a velocity of magnitude 375m/s is fired into a wooden block with mass 1.10kg , How fast is the block moving just after the bullet emerges from it
A(n) 1340 kg car moving with a speed of 16.6 m/s collides with a utility pole and is brought to rest in 0.299 s
A blackened, solid copper sphere that has a radius equal to 4.5 cm hangs in an evacuated enclosure whose walls have a temperature of 23°C. find the initial rate at which its temperature changes
What is a unique characteristic of water between 0 and 4 degrees celcius - Need a question pertaining to heat and temperature dealing of course in physics.
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 430 kW-h/y, On average, how much energy does the freezer use in a single day
A group of explorers in Antarctica can obtain water only by melting ice. They wish to make 4 cups of coffee, determine the amount of heat required and the amount of power required
Dan is gliding on his skateboard at 4 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6 m/s (as measured by an observer on the ground). Dan's mass is 50 kg and the skateboard's mass is 7 kg. How fast is Dan going..
An airplane starting from airport A flies 280 km east, then 365 km at 29.0° west of north, and then 130 km north to arrive finally at airport B.
q1. a radio station broadcasts at a frequency of 600000 hz. know that radio waves have a speed of 3.00 x 108ms what is
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