An arrow is fired directly horizontal off a cliff that is 10.0 meters tall with a velocity of 65.5 m/s. a) How long is the arrow in the air? b) What is the range of the arrow?

How much power should a braked 1.5t car have to be braked to reduce its speed from 30m / s to 10m / s in 5s?

A train of waves is moving at a speed of 30 m/s. The frequency of the waves is 10 Hz. What is the wavelength? a. 300 m c. 3 m b. 30 m d. 0.1 m

Who developed an empirical equation from which the wavelengths of lines in the spectrum of hydrogen atoms can be calculated?

Glass is called fourth state of matter. give reasons

5. In order for an F-18 fighter jet to take off from an aircraft carrier, it needs to reach a speed of 73 m/s by quickly accelerating down a 90 m long runway.

Suppose a body has a mass of 60 kilograms and a velocity of 2 meters per second upward. What is the linear momentum?

Reflection and abssorption prevent some

Why is it important to change only one experimental variable at a time in an experiment?

A 0.0663 kg ingot of metal is heated to 241◦C and then is dropped into a beaker containing 0.395 kg of water initially at 25◦C. If the final equilibrium state of the mixed system is 27.4 ◦C, find the specific heat of the metal.

What does it mean when we say an atom has decayed?