8.0kg rocket fired horizontally encounters a force of air resistance of 4.9 N. The force supplied by the rocket's engine is 60.9N. What is the net force accelerating the rocket?

How do police use the principle of the Doppler effect? To transmit fingerprints from one precinct to the next To measure how much pollution is coming from your car To measure the speed of cars on the highway Police don't use this, only the weather

Cientists have observed a sudden explosion in the sun followed by rapid changes in the sun's brightness. Which of these events would most likely occur due to this solar condition?

A generator transforms a. potential energy into kinetic energy. b. mechanical energy into electrical energy. c. magnetic energy into electrical energy. d. friction into electrical energy.

What information does the National Weather Service produce? Select three options. 1. simple maps 2. newspaper maps 3. maps with isobars 4. maps with isotherms 5. weather service maps

A body travels the first half of the total distance with velocity v and second half with v2 calculate avg velocity

To stretch a certain nonlinear spring by an amount x requires a force F given by F = 40 x - 6 x 2, where F is in Newtons and x is in meters.

A wave passes through an opening in a barrier. The amount of diffraction experienced by the wave depends on the size of the opening and the wave's (1) amplitude (3) velocity (2) wavelength (4) phase

Balanced - Forces acting on an object are balanced if the ... If forced on an object are balanced then the object cannot be ...

How are magnetic stripes near mid-ocean ridges evidence for sea-floor spreading?

If a truck has a mass of 2 x 106 grams and a velocity of 35m/s, what is its momentum? kgm/s a. 2 million b. 70 c. 57.14 d. 70,000 e. 57,100