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PH201 help.
The first stage of a trip has a displacement vector in the negative x direction. The second stage has a displacement at an angle of 30.0 above the +x axis. The final stage has a displacement of magnitude 15km and points in a direction 40degrees below the +x axis. If after all three stages you end up where started, what was the magnitued of the displacement of the first two stages.
It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. Find out the angular speed of the wheel at t = 2.30 s.
The average speed of a nitrogen molecule in air is about 6.70 * 10^2 m/s, and its mass is about 4.68 * 10^-26 kg. What average force does the molecule exert on the wall
A battery with an emf of 11.1 Volt and internal resistance of 1.02 ohms carries a positive current of 0.550 Amp from its negative terminal to its positive terminal. Determine at what rate is chemical energy used
A negative charge moves in the direction of a uniform electric field. Does the charge move to a position of higher or lower potential
a centrifuge can be used to separate cells from a liquid. to increase the rate at which objects can be separated from
A driver running 1.9 m/s dives out horizontally from the edge of a vertical cliff and 2.4 s later reaches the water below. Part A) How high was the cliff?
A baseball player hits a home run into the right field upper deck. The ball lands in a row that is 140 horizontally from home plate and 30.0 above the playing field. Determine the ball's average velocity components
The takeoff speed for an Airbus A320 jetliner is 77m/s. Velocity data measured during takeoff are as follows: t(s) 0, 10, 20, 30 vx(m/s) 0 22 44 66. What is the minimum length runway this aircraft can use
The mass of the moon is 7.3*10^22 kg and its radius if 1785km. What is the strength of the gravitational field on the surface of the moon?
A river has a steady speed of 0.250m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. by how much would the trip be longer or shorter
At a distance of 6.0 km from a radio transmitter, the amplitude of the oscillating electric field of the radio wave is Eo=.13 V/in, What is the time-averaged energy flux
This same battery is now connected to a 12 resistor. How much current flows through this resistor
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