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A 2.40cm × 2.40cm square loop of wire with resistance 1.10×10?2? has one edge parallel to a long straight wire. The near edge of the loop is 1.10cm from the wire. The current in the wire is increasing at the rate of 120A/s. What is the current in the loop?
This is accomplished using two small rockets, each with 150-N thrust, that are mounted on the rim of the station.
A 6.30kg block is pushed 9.45m up a smooth 37.0? inclined plane by a horizontal force of 80.0N . If the initial speed of the block is 3.35m/s up the plane. Calculate the initial kinetic energy of the block
The flywheel of an engine has a moment of inertia 2.50 about its rotation axis. What constant torque is required to bring it up to the angular speed of 390 in a time of 8.50, starting from rest? What is its last kinetic energy . Discover an angular..
An elastic cord is 65 cm long while a weight of 56 N hangs from it and is 82 cm long while a weight of 84 N hangs from it. What is the spring constant of this elastic cord.
Assume that the rod is held at rest horizontally and then released. (Throughout the remainder of this problem, your answer may include the symbol, moment of inertia of the assembly, whether or not you have answered the first part correctly.)
If the velocity of the car is increased to 50 km/ hour, what is its kinetic energy. if the velocity is improved to 75 km/ hour, what is its kinetic energy.
A planet can have an atmosphere if the escape speed of the planet is 6 times larger than the thermal speed of molecules in the atmosphere. What is the radius of this object's orbit around the sun
Calculate the velocity of a 50.0g steel ball shot from a slingshot with a 120N/m spring constant when pulled back 35cm and released
A small charged bead has a mass of 2.0g . It is held in a uniform electric field E? = (200,000 N/C, up). What is the charge on the bead
Treat a Boron atom as 5 protons at the origin, 2 electrons spread uniformly on a shell (radius 13.2[pm] centered on the origin) , 2 more electrons spread on a shell (radius 105.8[pm] centered on the origin), and its outer electron at x= 211.6 pm.
Two speakers, one directly behind the other, are each generating a 152-Hz sound wave. What is the least separation distance between the speakers that will produce destructive interference at a listener standing in front of them.
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
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