How far must you stretch a spring with k = 1800 N/m to store 270 J of energy? Express your answer in meters.

What is special about a dc circuit ?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station