Which of the following stars has the highest surface temperature? A. red star B. blue star c. yellow star D. orange star

A projectile was launched horizontally with a velocity of 468m/s, 1.86m above the ground how long did it take the projectile to hit the ground

A 2.0-kilogram mass is located 3.0 meters above the surface of Earth. What is the magnitude of Earth's gravitational field strength at this location? (1) 4.9 N/kg (3) 9.8 N/kg (2) 2.0 N/kg (4) 20. N/kg

What is the period of a wave if the wavelenght is 110m and the speed is 200m/s? 2 s 100s 200,000 s 0.5 s

A cessna 150 airplane has a takeoff speed of 28 m/s. determine the minimum length of the runway which would be required for the plane to take off if it averages an acceleration of 1.9 m/s/s.

The kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.

1) Which is a characteristic of a metal? A) It looks dull. B) It feels brittle. C) It is a good insulator. D) It is a good conductor of electricity. 2)

1:a boy 2 a girl pulling a heavy crate at the same time w/10 unite of force each. What is the net force acting on the object

Animals that can hear ultrasonic sounds are the what

If the rock has a mass of 1 kg which is the speed of the rock after it has fallen for two seconds

2 Cars A and B both at rest are to set of from a town to a common destination along the same route. Car A was the first to take off and travelled at 2.