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A small rock with mass 0.12 is fastened to a massless string with length 0.80 to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45 with the vertical. Air resistance is negligible. Part A What is the speed of the rock when the string passes through the vertical position? Express your answer using two significant figures. Part B What is the tension in the string when it makes an angle of with the vertical? Express your answer using two significant figures. Part C What is the tension in the string as it passes through the vertical? Express your answer using two significant figures.
A concave makeup mirror is designed so that a person 26 cm in front of it sees an upright image magnified by a factor of two
A 63.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35kg tool away from her at 3.60m/s relative to the space station. With what speed will she begin to move\\
You give a 2.35 kg book an initial shove at 2.50 m/s, Find the coefficient of friction between book and floor
An amateur radio operator wishes to build a receiver that can tune a range from 13.8 MHz to 15.1MHz, What is the required value of the constant inductance
A third point particle that has a charge equal to Q = 13q sits at the apex of the triangle. A fourth point particle that has charge q' is placed at the midpoint of the baseline making the electric field
The seed has a mass of 250 mg., a functional lift-to-drag ratio of 4.0, a lift coefficient under the same conditions of 0.3, and a wing area of 5000 mm2. How long will it take to hit the ground
A horizontal force of 200 N pushes a 10 kg block 5.0 m up along a plane inclined at 37 ° to the horizontal. Calculate the work done by the horizontal force
A photoelectric-effect experiment determines a stopping potential of 1.93 eV while light of 200 nm is used to illuminate the cathode.
A snowboarder of mass 79 kg travels down the slope of height 150 m, what is the work done on her by friction
Consider point P on the viewing screen of a double-slit experiment. This point is 75% of the way from the center of the third bright fringe to the center of the fourth bright fringe. If the wavelength of the light is 600 nm, what is the extra distanc..
An ambulance passes a bus stop at 50m/s with a siren of 340Hz, What is the wavelength heard by the bus stop costumers as the ambulance approaches
an astronaut on mars might lean over the edge of 25.0 meter tall spacecraft, How much time will it take for the package to strike the ground
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