What characteristics of the medium determine the speed of sound? How would raising the pitch of a singing voice affect the speed with which the song is carried through the room?
In an 8.00 km race, one runner runs at a steady 11.0 km/h and other runs at 14.8 km/h. How far from the finish line is the slower runner when the fast runner fisnishes the race?
A question for the physicists out there:During a thunderstorm, the potential difference between the thunderclouds and the ground builds up to [tex]1.5*10^6[/tex] V. In each stroke of lightning, 30C of charge passes between the thunderclouds and the ground. Lightning strokes to the ground occur, on average, and 2 minute intervals.Calculate:i) The average current between the thunderclouds and the ground,ii) The energy transferred in each stroke of lightning.I already know the answer, I'm just seeing who here is good at physics ;)
The water skier hass a mass of 68 kg. Calculate the resultant force acting on the water skier while accelerating.
The distance between Earth and its moon is 3.84 × 108 meters. Earth’s mass is m = 5.9742 × 1024 kilograms and the mass of the moon is 7.36 × 1022 kilograms. What is the force between Earth and the moon?
Light in vacuum travels at a speed of 3.00 x 10^8 m ^-1 s^-1 on average earth is 93,000,000 miles from the sun how many minutes does it take sunlight to reach the earth show work please
how do you find the actual diameter of a star going from arcseconds to kilometers?ex The supergiant star Betelgeuse (in the constellation Orion) has a measured angular diameter of 0.044 arcsecond. Its distance has been measured to be 427 light-years. What is the actual diameter of Betelgeuse?
1) how will the total distance traveled by a car in 2 hours be affected if the average speed is doubled? 2)A spider is crawling on the wall. First it crawls 1 meter up, then 1meter left, and then 1meter down. What is its total displacement? 3)a jogger travels 8.0 km in 1.25 hrs. What is the joggers average speed?
Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1500 lumens of light enters the cable, the intensity of light decreases by 3.4% per meter of the cable. Write a function f(x) to represent the intensity of light, in lumens, when it has passed through x meters of the cable.
You lift a 45-newton bag of mulch 1.2 meters and carry it a distance of 10 meters to the garden. How much work was done?
