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In a location where the speed of sound is 344 m/s, a 2,000 Hz sound wave impinges on two slits 30 cm apart. At what angle, in degrees, is the first-order maximum located?
Raindrops fall 1830 m from a cloud to the ground. If they were not slowed by air resistance, how fast would the drops be moving when they struck the ground
Pool players often pride themselves on their ability to impart a large speed on a pool ball. they have placed you in charge of determining the speed of the players\' break shots
A solenoid 10.0 cm in diameter and 64.2 cm long is made from copper wire of diameter 0.100 cm, with very thin insulation. What power must be delivered to the solenoid
An AC generator operates at 22 V and delivers 200 W of power through an ideal (no loss) transformer to the load with the resistance 4.0 \Omega
Two point charges are a distance L apart, and the electric force exerted by one charge on the other is FE. What is the new separation between the charges
A projectile is fired with an initial speed of 60.9 at an angle of 37.4 above the horizontal on a long flat firing range. Determine the total time in the air
Fireflies emit flashes of light to communicate, directly converting chemical energy into the energy of visible-light photons. How many photons does the firefly emit during each flash
when jim abd rob ride bicycles, jim can only accelerate at three quarters the acceleration of Rob. Both start from rest at the bottom of a long straight road with constant upward slope. If rob takes 5.7 minutes to react the top, how much earlier s..
A spherical pinball, initially at rest, rolls down a ramp inclined at 18 degrees relative to horizontal. Determine the translational speed after 3 seconds
Coherent light of wavelength 540.4 nm is sent through two parallel slits in an opaque material. Each slit is 0.700 µm wide. How many bright fringes are visible on the screen
A long stick has a mass of 0.5 kilogram and a radius of gyration of 4.1 meter. Find which is harder to swing in a circle, the long stick or the barbell
Your friend observes an artificial satellite orbiting the earth. He estimates it is at an altitude h = 938 km above the earth's surface and has a mass m = 3500 kg. What is the period (s) of the satellite's motion
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