An ultrasound wave vibrates 30,000 times per second. what is the frequency

Shauna leads a very inactive lifestyle, so she should eat more calories. True or false?

The coefficient of friction between the wheels of Dawson's 1985 Ford Coupe and the dry pavement is 0.85. Determines the acceleration which the 1300-kg Coupe experiences while skidding to a stop.

How have moral and ethical issues influenced science

Which has the greater change in momentum, a 50 gram clay ball that strikes a wall at 1 m/s and sticks or a 50 gram superball that strikes the wall at 1 m/s and bounces away at 0.8 m/s. Explain?

A soccer player kicks a ball, giving it an initial velocity of 9.0 m/s in the positive x - direction. Because of the wet grass and dirt, the ball slows uniformly to 3.00 m/s when it has travelled 30.0 m.

As protostars continue to contract, their cores become hotter and more dense until what process begins ...

Emily jogs 3 laps at the track to warm up. She jogs at 5 mph. Then she runs 3 more laps at 7 mph. What is true about her average speed and her average velocity?

Which of the following elements are the most reactive? beryllium, calcium, magnesium, barium?

1.) State which definition of power below is correct. A.) the energy transferred per hour. B.) the energy transferred. C.) the energy transferred per second. D.) the force over a distance. 2.

Science and technology are closely related, but not the same. Which of the following is most likely a result of technology, not science?