A rectangular coil of 100 turns measures 40.0 cm by 20.0 cm. This coil is placed next to an electromagnet which is switched on, increasing the magnetic field through the coil from zero to 0.800 T in 50.0 ms. If the resistance of the coil is 2.0 ohms, what are the induced voltage and current in the coil?
128 V, 64 A
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A tiny pig is dropped from the top of a building and lands safely on a trampoline. The tiny pig will have an increase in what type(s) of energy as it falls?
a. Gravity b. Potential energy c. Kinetic energy d. All of the above
Without air resistance, a projectile fired horizontally at 8 km/s from a mountain top will
A) accelerate downward at g as it moves horizontally. B) trace a curve that matches Earth's curvature. C) return to its starting position and repeat its falling behavior. D) all the above E) none of the above
vx is the velocity of a particle moving along the x axis as shown. If x = 2.0 m at t = 1.0 s, what is the position of the particle at t = 6.0 s?
?
?
A. ?2.0 m B. +2.0 m C. +1.0 m D. ?1.0 m E. 6.0 m
The point of a planet's orbit farthest from the Sun is called the ______________
Fill in the blank(s) with correct word