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A circular wire loop with a radius r is placed so the plane of the loop is perpendicular to a uniform magnetic field of strength B. The loop lies in the plane of the paper and the magnetic field points into the paper.
a. Theradius changes from 10.0 cm to 20.0 cm in a time of 8.0 s.The magnetic field is 3.0 T. The loop has a resistance of 5.0 ohms. On average, what is thevalue of the current while the radius is changing?
A speed skater goes around a turn that has a radius of 36 m. The skater has a speed of 12 m/s and experiences a centripetal force of 461 N
Find the speed an alpha particle requires to come within 2.6 ? 10-14 m of a uranium nucleus
A fish appears to be 7.00 m below the surface of a pond when viewed almost directly above by a fisherman
A 82 person sits on a 3.8 chair. Each leg of the chair makes contact with the floor in a circle that is 1.4 in diam. Determine out the pressure exerted on the floor by each leg of the chair, Assume the weight is evenly distributed.
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
A storm cloud and the ground represent the plates of a capacitor, How much sap in the tree can be boiled away, Model the sap as water initially at 26.0°C
The potential energy U(r) between any two atoms, when given as a function of the distance between their centers, do the atoms behavemost like a simple harmonic oscillator
A car of mass M = 1100 kg traveling at 45 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires.
A projectile is launched from ground level with an initial speed of 52.2 m/s. Find the launch angle (the angle the initial velocity vector is above the horizontal) such that the maximum height of the projectile is equal to its horizontal range. (I..
A railroad boxcar that has " due east" momentum of 15,000 kgm/sec collides with and couples with a similar boxcar that has "due west" momentum of 20,000kgm/sec. After collision, the combination has ( ) kgm/sec total of momentum.
Consider resistors R1 and R2 connected in series E R1 R2 and in parallel E R1 R2 to a source of emf E that has no internal resistance. How does the power dissipated by the resistors
Determine the absolute pressure at the bottom of a lake that is 50 m deep. Write yor answer correct to two decimal paces let Patm = 101,300 Pa
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