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A circuit consists of five resistors with resistances R1 = 1 Ω, R2 = 2 Ω, a variable resistor, the resistance Rx = 3 Ω of which can be adjusted, and 5.0 volt battery connected as shown in the figure. When Rx is adjusted to 3 Ω, there is zero current Ia = 0 through the Ra = 1 Ω (a balanced condition). What is the resistance R3?
Two events in reference frame S occur 15 us apart at the same point in space. Frame S' travels at speed v=0.87c relative to frame S. What is the time interval between the events in reference frame S' in us
An airplane is flying with a velocity of 90 at an angle of 22 above the horizontal. When the plane is a distance 122 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A baseball (mass = 140 g) is pitched so that it crosses home plate with a speed of 92.0 mph at an angle of 18.4degree below the horizontal. find the impulse delivered to the ball by the bat
The coefficient of static friction between the stone and each side of the tread channel is 0.7. While the tire surface is rotating at a maximum speed of 1 m/s, the stone flies out of the tread. The magnitude FN of the normal force that each side of t..
The length of a simple pendulum is 0.70 m and the mass of the particle (the "bob") at the end of the cable is 0.24 kg. What is the angular frequency of the motion
A wheel of radius 2m is undergoing rotational motion. If it has a rotational acceleration of 50s^-2, what is its center-of-mass accerleration?
Crossfire was a popular board game in which players attempted to propel a "puck" forward towards their opponet's side by shooting metal balls at it. What is the maximum speed a player can impart to the puck
a charge of -2.355 microc is located at 3.055 m 4.501 m and a charge of 1.800 microc is located at -2.372 m 0.a find
a 2.00 kg block is pushed against a spring with negligible mass and force constant k 400 nm compressing it 0.220m.
An object is thrown upwards with a speed of 14 m/s. How high above the projection point is it after 0.50 s
The bullet remains in the block, and after the impact the block lands d = 1.90 m from the bottom of the table. How much time does it take the block to reach the ground once it flies off the edge of the table.
Two satellites are in circular orbits around a planet that has radius 9.00x10^6m. One satellite has mass 65.0 kg, orbital radius 8.00×10^7 m, What is the orbital speed of this second satellite
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