A pendulum is swinging back and forth and has a kinetic energy of 400 J at a particular point in its path. Which of the following statements is not true?

A cyclist races around a circular track at the constant speed of 20 m/s. The radius of the track is 40 m. The centripetal acceleration of the cyclist is

A crate is pulled a distance of 15 meters by a horizontal rope with a force of 240 N while a sliding friction force of 60 N opposes that motion. What is the total work done on the crate over this distance?

When an object is moving in a circle at constant speed, its acceleration is

When objects are moved further apart from each other, the force of gravity

For reasons known only to them, a group of extraterrestrials offers you your choice of three gold ingots.  One weighs 10 N on Earth, the second weighs 10 N on Jupiter, and the third weighs 10 N on the Moon.  To get the most gold, you should choose the ingot that weighs 10 N on

What term describes the number of eggs that are fertilized?  

A postpartum gynecologic sonogram may be needed for which of the following assessments?  

The median gestational age of delivery for twins is ——————- weeks.  

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