What is the force in if the force out was 20 Newtons and the mechanical advantage was 4?

Which of the following IS NOT a part of an electromagnet? Electricity source Metallic core Coiled wire Paper clips

How are electromagnetic waves different from ocean waves

Which best describes a difference between laser light and regular light?

A train has a length of 102 m and starts from rest with a constant acceleration at time t = 0 s. At this instant, a car just reaches the end of the train. The car is moving with a constant velocity. At a time t = 18.

What is the de broglie wavelength of an object with a mass of 3.80 kg moving at a speed of 1.90 m/s? (useful constant: h = 6.63*10-34 js.) ?

How long does it take for light from a star that is 8 light years away to reach Earth? Question 7 options: 8 earth minutes 16 earth minutes 8 earth years 16 earth years

Why does water in hot springs always remain hot? Why doesn't it's thermal energy spread out?

True or false All forces are different; each exerts a particular type of effect on a object

The Yerkes refracting telescope has a 1.00 m diameter objective lens of focal length 20.0 m. Assume it is used with an eyepiece of focal length 2.50 cm. (a) Determine the angular magnification of the planet Mars through this telescope.

A small kid sits on a bike (Anita). A bigger and stronger person (Jamy) pushing the kid so that the kid starts speeding up. (neglect friction). Mark all correct statements about the forces between them. A.