An ambulance driving with velocity v/8 where v is the speed of sound, emits a siren with a frequency of. What is the frequency heard by a stationary observer toward whom the ambulance is driving?

You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30∘ above the horizontal with a force of magnitude 240 n, causing the box to move horizontally.

Dos bolas, de masas mA = 40 g y mB = 60 g, esta? n suspendidas como se observa en la figura. La bola ma? s ligera se jala en un a? ngulo de 60° con respecto a la vertical y se libera.

Which is an example of a superconductor?

What does every magnet possess? A strong magnetic field b north and south poles c iron metal d repulsion

Compare and contrast loudness and intensity

Woman pulls a 6.87 kg suitcase, initially at rest, with a 29.2 N force along the handle at 57.7º. Friction pulls back at 12.7 N, and the suitcase moves 5.93 m. What is its final speed? (Unit = m/s)

Suppose you know a golf ball's horizontal velocity and the time it has traveled through the air. how could you calculate how far the ball traveled

What is a radio interferometer? a device for correcting chromatic aberration in radio telescopes a device for absorbing and transmitting radio waves a network of several radio telescopes wired together a radio communication network joining several

In which galaxy is our solar system located? a. milky way b. ngc 4414 c. andromeda d. small magellanic cloud

Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12 m