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A pendulum bob of mass 0.5 kilogram swings on the end of a 0.80 meter string, making an angle of 25 degree with the vertical at its highest point. Find the kinetic energy and speed of the bob when it passes through the equilibrium position?
What are the final temperatures of water and the aluminum.
In the figure, suppose that the separation between speakers A and B is 5.90 m and the speakers are vibrating in phase. They are playing identical 110-Hz tones, and the speed of sound is 343 m/s.
The Hubble Space Telescope has a mirror diameter of 2.4m. Assume the telescope is used to photograph stars near the center of our galaxy, 30,000 light years away, using red light with a wavelength of 650 nm.
What is the electric potential 3.0×10^?11 from a proton (charge +e)? Let V=0 at r=infinity. What is the potential energy of an electron at this point
An inclined plane has a height of 0.383 and is 120 cm long. What is the KE energy at the end of the ramp
A simple pendulum oscillates with a period of 1.3 seconds the maximum velocity of the bob is 38 cm. Determine the amplitude of the motion in degrees and the maximum tangential acceleration of the bob in cm/s2
A 25 g glass tumbler contains 370 mL of water at 24°C. If two 11 g ice cubes each at a temperature of -3°C are dropped into the tumbler, what is the final temperature of the drink
A uniform 34.5-kg beam of length = 4.95 m is supported by a vertical rope located d = 1.20 m from its left end as in the figure below. The right end of the beam is supported by a vertical column.
An airplane is flying through a thundercloud at a height of 2300 m. (Flying at this height is very dangerous because of updrafts, turbulence, what is the electric field at the aircraft
What is the wavelength of radio waves. An electron in a TV is accelerated toward the screen across a potential difference of 54.2kV. How much kinetic energy does the electron gain while accelerating.
A satellite, moving in an elliptical orbit, is 361 km above Earth's surface at its farthestpoint and 169 km above at itsclosest point. Calculate the semimajor axis of the orbit. Calculate the eccentricity of the orbit.
A boat crosses a 500 m river. The water run at 5.9527 m/s due east. The boat is able to travel at 5 m/s relative to the water. what is the net displacement along the river bank
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