What is required for a rocket to lift off into space?

a. thrust that is greater than Earth's gravity

b. mass that is greater than Earth's

c. very little air resistance

d. more velocity than friction

A light with a second-order bright band forms a diffraction angle of 30.0°. The diffraction grating has 250.0 lines per mm. What is the wavelength of the light? 800 nm 1,000 nm 1,386 nm 1,732 nm

Energy that is not utilized for work or heat transfer is converted to the chemical energy of body fat containing about 39 kJ/g. How many grams of fat will you gain if you eat 10,000 kJ (about 2500 kcal) one day and do nothing but sit relaxed for 16.

How did the angel of the pendulum affect the period

Why is data important to scientific endeavor?

The total pressure for a fluid is a. the sum of the hydrostatic and static pressures. b. the sum of the hydrostatic and dynamic pressures. c. the sum of the static and dynamic pressures. d. the sum of the static, dynamic, and hydrostatic pressures.

What does the law of reflection mean?

Compared with the peak wavelength given off by the sun, what is the peak wavelength given off by a hotter star? A.) shorter in wavelength and higher in energy B.) shorter in wavelength and lower in energy C.

4. Explain the doppler effect. Be sure to talk about how the wave changes, the perceived change hear by a person that an emitted sound is moving towards, and the perceived change hear by a person that an emitted sound is moving away from. 5.

How do you calculate the effective resistance in a parallel circuit?

You touch a downed power line covered or bare, what's the likely outcome?