Part A = counterclockwise
Part B = I = 2EMF / ((2 * R1) + R2)
Part C = IB = 2*EMF / (R1 + 2*R2)
Part D = 0.064 W
Part E = R1 / R2 = 1
Part F = R2 > R1
In which direction does the current in circuit A flow?
What is the current through the resistor of resistance R2 in circuit A?
Calculate the current IB through the resistor of resistance R2 for circuit B.
What is the power dissipated by the resistor of resistance R2 for circuit A, given that Ε = 10 V, R1 = 300 ohms, and R2 = 5000 ohms?
For what ratio of R1 and R2 would power dissipated by the resistor of resistance R2 be the same for circuit A and circuit B?
Under which of the following conditions would power dissipated by the resistance R2 in circuit A be bigger than that of circuit B?
Part A = 0.26 s
If the string is 9.5 m long, has a mass of 55 g and is pulled taut with a tension of 7.5 N, how much time does it take for a wave to travel from one end of the string to the other?Click for More...
Part A = 0.464 rev/s
Part B = 0.0748 rev
Part C = 1.02 m/s
Part D = 3.59 m/s^2
Compute the angular velocity of the fan after time 0.201 s has passed.
Through how many revolutions has the blade turned in the time interval 0.201 s from Part A?
What is the tangential speed vtan(t) of a point on the tip of the blade at time = 0.201 s?
What is the magnitude α of the resultant acceleration of a point on the tip of the blade at time t = 0.201 s?
Part A = 4.26 * 10^37 kg
Part B = 2.14 * 10^7
Part C = no
Part D = 6.31 * 10^10 m
Part E = yes
Determine the mass of the massive object at the center of the Milky Way galaxy.
Express your answer in solar masses instead of kilograms, where one solar mass is equal to the mass of the sun, which is 1.99 * 10^30 kg.
Observations of stars, as well as theories of the structure of stars, suggest that it is impossible for a single star to have a mass of more than about 50 solar masses. Can this massive object be a single, ordinary star?
Many astronomers believe that the massive object at the center of the Milky Way galaxy is a black hole. If so, what is its Schwarzschild radius Rs?
Would a black hole of this size fit inside the earth’s orbit around the sun? The mean distance from the sun to the earth is 1.5 * 10^11 m.
Part A = 6.72 cm/s
Part B = 11.0 cm/s
If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward?
If the ball hits Olaf and bounces off his chest horizontally at 7.40 m/s in the opposite direction, what is his speed after the collision?