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In a high magnetic field experiment, a conducting bar carrying10.0 kA passes through a 30 centimeter long region containing a 30.0 T magnetic field. If the bar makes a 30 degree angle with the field direction, determine what force is necessary to hold it in place?
______kN
A 605 N woman climbs a staircase that rises at 47 degrees above the horizontal and is 4.70 m long. Her speed is a constant 40.0 cm/s. How much work has gravity done on her as she climbed the stairs
A 8 m x 11 m swimming pool slopes linearly from a 1 m depth at one end to a 3.8 m depth at the other. What is the mass of water.
003 10.0 points A wire is made of a material with a resistivity of 1.72779 × 10^ ?8 ? · m. estimate the resistance of the wire?
When the 210kg Genesis Mission capsule crashed with a speed of 311km/h, it buried itself 81.0cm deep in the desert floor. Assuming constant acceleration during the crash, at what average rate did the capsule do work on the desert?
A railroad car of mass m moving at v collides completely inelastically with a stationary railroad car of mass 2 m and couples to it
1. briefly and clearly explain the concept of inertia held by galilio kepler and descartes. make sure that your
q1. a stone thrown upward from the top of a 108 ft cliff at 132 ftsec eventually falls to the beach below. for this
A wire carries a current of 0.616 A. This wire makes an angle of 56.7° with respect to a magnetic field of magnitude 4.63E-5 T. The wire experiences a magnetic force of magnitude 7.17E-5 N. What is the length of the wire?
A string under a tension of 47.00N is used to whirl a rock in a horizontal circle of radius 2.60 m at a speed of 21.0 m/s. The string is pulled in and the speed of the rock increases.
A proton accelerates from rest in a uniform electricfield of 670 N/C. At some later instant,its speed is 1.60 X106 m/s(nonrelativistic, because v is much less than the speed oflight). Find the acceleration of the proton.
The rms speed of the molecules in 1.8 of hydrogen gas is 1600 m/s. What is total translational kinetic energy of the gas molecules.
An electric heater is constructed by applying a potential difference of 110 V across a wire with a resistance of 5.0 W
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