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The coldest and hottest temperatures recorded are: 134 degrees Farhenheit and -80 degrees Farhenheit.
What is the speed of sound in air at each temperature?
An airplane is flying through a thundercloud at a height of 2400 m. (Flying at this height is very dangerous because of updrafts, turbulence, and the possibility of electric discharge.)
A certain gyroscope consists of a uniform disk with a 56 cm radius mounted at the center of an axle that is 13 cm long and of negligible mass. what is the precession rate
a 0.50 kg mass is attached to a spring of spring constant 20 nm along a horizontal frictionless surface. the object
With what initial speed should a positive charge, +q, be given such that if starting infinitely far away from a fixed positively charged nuclues, +Q, of radius R, the positive charge is just able to get to the surface of the positive charge, done wit..
According to safety standard for air bags, the maximum acceleration during a car crash should not exceed 60 g and should last for no more than 36 ms.
A satellite is in orbit about Mars. The satellite's orbital radius is 4.25×107m. The mass of the satellite is 6253 kg and the mass of Mars is6.42×1023 kg. Decide the orbital speed of the satellite.
A 0.36 kilogram ball moving in the +x direction at 17.8 meter per second is hit by a bat. Determine the average force exerted on ball by bat
What multiple of the time constant τ gives the time taken for an originally uncharged capacitor in an RC series circuit to be charged to 14.0% of its final charge?
A heating element is made by maintaining a potential difference of 80.0 V across the length of a Nichrome wire that has a 2.94 × 10-6 m2 cross section. what should the length be
at its hot reservoir at 135 degrees Celsius and has a thermal efficiency of 22.0%. How much heat does the engine waste per cycle
A 45.0 kg girl is standing on a 136 kgplank. The plank, originally at rest, is free to slide on a frozenlake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
A piece of putty of mass m = 0.75 kg and velocity v = 2.5 m/s moves on a horizontal frictionless surface. What fration of the initial kinetic energy of the putty is lost in this collision
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