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Illustrate what tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 19.0^circ with the vertical?
define How much charge is on each plate.
The wavelength of the waves in seawater is 4.80 x10-4 m. While the generator is directed downward, an echo reflected from the ocean floor is received 10s later.
Algol consists of a 3.7 MSun main-sequence star and a 0.8 MSun subgiant. Why does this seem surprising, as a minimum at first.
Co-60 is often used as a radiation source in medicine. It has a half-life of 5.25 years. How long, after a new sample is delivered, would the activity have decreased to about 1/3 its original value.
A little cat, Bella, walks in a straight line, which we shall call the x axis, with positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a function..
A 380-N, uniform, 1.50 m bar is suspended horizontally by two vertical cables at each end. A small object of weight 520 N is placed distance 0.5 m from the cable A. What is the tension in cable A.
If friction and air resistance can be neglected, determine her speed vB when she reaches the horizontal end of the ramp at B.
assume you would enter a vacuum chamber (on Earth), that is, a chamber with no air in it. Inside this chamber, if you dropped a hammer and a feather from the same height at the same time, both would hit the bottom at the same time.
What law of physics would be violated
Astronauts on our moon must function with an acceleration due to gravity of 0.170g A. If an astronaut can throw a certain wrench 11.0{rm m} vertically upward on earth, how high could he throw it on our moon if he gives it the same starting speed i..
imagine a linebacker collides with a stationary quarterback and they become entangled. what will happen to the velocity of the linebacker-quarterback system if momentum is conserved.
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