While running, a person dissipates about 0.60 j of mechanical energy per step per kilogram of body mass. if a 51-kg person develops a power of 67 w during a race, how fast is the person running? (assume a running step is 1.5 m long.) ?

The volume of a gas can be converted to moles by A. dividing by 6.02 * 1023. B. dividing by the ideal gas law constant. C. multiplying by. D. multiplying by the ideal gas law constant.

Why should people pay attention to scientists when making decisions? A) scientist are the smartest people B) Scientist make up facts that they wish true C) scientist use experiments to test their ideas D) scientist are always correct

Which of the following explains the process of radiation? Question 3 options: when heat gets transferred through objects that are touching when the measurement of heat in the atmosphere goes down when heat gets transferred through electromagnetic

Tania releases a javelin 1.2 meters above the ground with an initial vertical velocity of 20 meters per second. how long will it take the javelin to hit the ground? - 16t2 + 20t + 1.2 = 0 - 4.9t2 + 20t + 1.2 = 0 - 4.9t2 + 20t = 1.2 - 4.9t2 + 1.

When a piston is at its lowest position in the cylinder, it's said to be at A. BDC. B. TDC. C. BHP. D. IHP.

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?