The hammering on a train track is often heard twice by workers farther down the track; first as the sound travels through the steel and second as the sound travels through the air. Which graph is true

Explicacion sobre que pasa cuando pones un cd en una lampara

A car initially traveling at 21.4 m/s accelerates at a rate of 4.4 m/s2 for 7.5 seconds. What is the final velocity of the car?

How is acceleration calculated? a. initial velocity - final velocity / time c. final velocity - initial velocity / time b. initial velocity final velocity / time d. final velocity / time

write a paragraph that explains the difference between work in the everyday sense and the scientific definition of work

What is the gravitational force acting on a 70.0 kg object standing on the earth's surface?

What is the acceleration of an electron that has moved between - 1.5V and 3.0V? Assume is began at rest.

The first hominine in the genus Homo was named Homo habilis because evidence indicates that members of the species used

Planets move around the sun in elliptical orbits. A. true B. false

A 113 kg man sits on the stern of a 6.3 m long boat. The prow of the boat touches the pier, but the boat isn't tied. The man notices his mistake, stands up and walks to the boat's prow, but by the time he reaches the prow, it's moved 3.

What os the term for the smallest bit into which chemical substance can be divided and still have the properties of that substance A : eletron B:molecule c:atom D:ion