What is the frequency of the sound waves
The sound of a mosquito is produced when it beats its wings at an average of 600 beats per second. What is the frequency of the sound waves? Assuming that the speed of sound is 343 m/s, what is the wavelength of the sound waves?
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What minimum horsepower must a motor have to be able to drag a 260 box along a level floor at a speed of 1.45 if the coefficient of friction is 0.50?
An 8.00-kg point mass and a 15.0-kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 20.0 cm from the 8.00-kg mass along the line connecting the two fixed masses. Find the
A 10.0-kg mass is placed on a 25.0o degree incline and friction keeps it from sliding. The coefficient of static friction in this case is 0.580, and the coefficient of sliding friction is 0.520. The mass is given a shove causing it to slide down
A vertical scale on a spring balance reads from 0 to 170 . The scale has a length of 12.0 from the 0 to 170 reading. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.20.
It travels 306.5 cm in thehorizontal direction before it hits the ground. Calculate themomentum of the steel ball in the horizontal direction.
1100 kg car carrying four 98 kg people travels over a "washboard" dirt road with corrugations 4.4 m apart. The car bounces with maximum amplitude when its speed is 16 km/h. When the car stops, and the people get out, by how much does the car body
A 1050 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is 15 km/h. The car n
An object moves at a constant velocity of 11 m/s to the southwest for an interval of 20 s. Halfway through this interval, what is the magnitude of its instantaneous velocity?
find the magnitude and direction of the net external force on the crate
An 9.0 kg mass, m(sub)1, on a frictionless table is accelerated by a 3.0-kg mass, m(sub)2, hanging over the edge of the table. What is the acceleration of the mass along the table?
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