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Each of the two identical slender bars shown has a length L = 30 in. Knowing that the system is released from rest when the bars are horizontal, use computational software to calculate and plot the angular velocity of rod AB and the velocity of point D for values of θ from 0 to 90°
when the e sting of a guitar which has a frequency 330hz is plucked the sound intensity decreases by a factor of 2
A woman with a mass of 70 kg climbs a set of stairs that are h = 3 m high. How much gravitational potential energy does she gain
A woman stands on a scale in a moving elevator. Her mass is 73.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. What does the scale read during the acceleration
The interaction of a typical car’s tires with the road (i.e. the “grip” of the tires) can provide a “lateral” acceleration (i.e. perpendicular to the direction the car is moving) of approximately 0.8 g’s (Some sports cars can get close to 1.0 g).
Up where the ISS (International Space Station) orbits at 387 km, even though they are weightless there still is an acceleration due to gravity. Calculate its value and what it is in respect to 8g at the Earth's surface.
a standing wave has a wavenumber 2.26*10^2 rad/min. What is the distance between the adjacent nodes
suppose a star the size of our sun but of mass 8.0 times as great were rotating at a speed of 1.0 revolution every 11
After the collision (assumed elastic), the second ball is moving along the positive y axis. Elucidate the final direction of the first ball, and what are their two speeds?
If the spring is compressed 20.1 cm and the ball travels horizontally 2.51 m from a height of 1.25 m, determine the spring constant of the spring.
a circular coil of 16 turns and radius 10 cm carrying a current of 0.75 a rests with its plane normal to an external
A car is traveling at 50.0 mi/h on a horizontal highway. Determine the stopping distance when the surface is dry
A 10.0 kg shell is fired vertically upward. At its max height of 500.0 m, it explodes into 3 pieces. Where does the third piece land
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