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A flight attendant pulls her 75 N flight bag a distance of 305 m along a level airport floor at a constant velocity. The force she exerts is 39 N at an angle of 59° above the horizontal. Find the work she does on the flight bag.
Two 1.5 V batteries connected in a series to a 5 ohm resistor produce a 0.7 A current Find the internal resistance of batteries
two displacement vectors when added produce a resultant of magnitude 100km pointing 37° south east. find the magnitude and direction of the other displacement vector.
a physics professor demonstrates the doppler effect by tying a 600hz sound generator to a 1.0-m-long rop, what are the highest and lowest frequencies heard by a student in the classs room
q1. the magnitude of f is 384 newtons and it points at 344o measured counter clockwise from the positive x-axis. what
A car is moving at a constant velocity for 3s until it is 3.0 m from a yellow light. It slows to a stop in 2.0s. It remains stopped for 50s and then speeds up for 2s.
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
A string 1.50 m long will break if the tension in it exceeds 2X10^2N. How fast (in m/s) can a rock of mass 1.50 kg be whirled in a circular horizontal path if the string is not to break? Assume the rock moves on a smooth horizontal surface (No fri..
Because of the Earth's rotation, a plumb bob does not hang exactly along a line directed to the center of the Earth. How much does the plumb bob deviate from a radial line
question1two metal balls a and b of negligible radius are floating at rest on space station freedom between two metal
using planck's law, Evaluate the Stefan-Boltzmann constant and Evalute the constant in the wien displacement law
The length of a beam increases by 2.45mm when its temperature is raised from 27.74oC to 76.79 oC. What is the length of the beam at the initial temperature
At sea level, a pressure gauge on a closed rigid tank reads 30.0 psi. What is the gauge pressure (in psi) for the tank in the new place
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