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When a 290 g piece of iron at 178°C is placed in a 100 g aluminum calorimeter cup containing 250 g of glycerin at 8°C, the final temperature is observed to be 36°C. What is the specific heat of glycerin?
A Federation starship (2.20 ×106 kilogram) uses its tractor beam to pull a shuttlecraft (2.20 × 104 kilogram) aboard from a distance of 12 kilometer away. Determine how far does the starship move as it pulls the shuttlecraft aboard
Two newly discovered planets follow circular orbits around a strain a distant part of the galaxy. Find the orbital period of the faster planet
Show that the Fermi energy or Fermi potential is spatially constant in the n-type Si slice with linearly varying donor dopant impurity concentration as given in given problem.
A horizontal platform the shape of a circular disk rotates in a horizontal plane about a frictionless vertical axis by an initial angular speed ?A dog (mass m) is initially riding the merry-go-round at its rim, however then slowly walks toward the ce..
An insect with many legs is scuttling across the floor. Assume that each leg pushes with the same force at exaclty the same spot. What is the insects acceleration in terms of gravity
Tarzan swings on a 30.0?m?long vine initially inclined at an angle of 370 with the vertical. What is his speed at the bottom of the swings if he starts from rest
How many watts must a fluorescent bulb (25% efficiency) use to produce the same amount of light as a 100-watt incandescent bulb, What would the power consumption be for an LED
question1at one instant a bicyclist is 40.0 m due east of a parks flagpole going due south with a speed of 10.0 ms.
A stream of doubly ionized particles (missing two electrons and therefore carrying a net charge of two elementary charges) moves at a velocity of 3.0 x 104 m/s perpendicular to a magnetic field of 9.0 x 10-2 T. What is the magnitude of the force acti..
A golf ball with mass 0.046 kg rests on a tee. It is struck by a golf club with an effective mass of 0.220 kg and a speed of 44 m/s. assuming that the collision is elastic, discover the speed of the ball when it leaves the tee.
If gravitational forces alone prevent a spherical, rotating neutron star from disintegrating, find the minimum mean density of a star that has a rotation period of one millisecond
It takes a force of 65 Newton to compress the spring of a toy popgun 0.16 meter to "load" a 0.14 kilogram ball. Find with what speed will the ball leave the gun
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