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A mass m1 undergoes circular motion of radius R on a horizontal frictionless table, connected by a mass less string through a hole in the table to a second mass m2. If m2 is stationary.
a) Find what is the tension in the string?
b) Evaluate the period of the circular motion.
An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. find the total kinetic energy of the automobile
An image projected on a screen is 9.1 cm high and is 6.4 cm from the lens. If the object that produces the image is 1.2 cm tall on the screen
When a 2.20-kg object is hungvertically on a certain light spring described by Hooke's law, the spring stretches 3.11 cm. What is the force constant of the spring?
A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that has a resistanceRof 8.0 ? as shown in the figure. The wire and the rod are placed in the plane of the paper.
an openclosed organ pipe resonates at its fundamental frequency fc. a second pipe with both ends open resonates at its
A planet with a radius of 6.68 ×107 m has a gravitational field of magnitude 34.2 m/s2 at the surface. What is the escape speed from the planet
The first car has twice the mass of a second car, but only half as much kinetic energy. What were the original speeds of the two cars
The trainer releases the ball at the horizontal distance of 4.72m away and the vertical distance of 4.61m above the water. At what height does the dolphin catch the ball
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two parallel plates separated by a distance d 0.4 meter have equal and opposite charge uniformly distributed on the
In the Bohr model of the hydrogen atom, an electron (mass m=9.1×10^?31kg) orbits a proton at a distance of 5.3×10^?11m. How many revolutions per second does the electron make
Two tuning forks have frequencies of 272 Hz and 294 Hz. What is the beat frequency if both tuning forks are sounded simultaneously
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