The Hubble Space Telescope (HST) orbits 569 km above Earth's surface. If HST has a tangential speed of 7,750 m/s, how long is HST's orbital period? The radius of Earth is 6.38 * 106 m.

What two forces keep the planets of our solar system in orbit around the sun

The free body diagram below represents Silly Sally hanging from a trapeze bar. Sally weighs 1,000 Newtons. What is the force in each of the chains holding the trapeze bar? A) 1,000 N B) 9,800 N C) 500 N D) 10.41 N

A Each time he does one pushup, Jose, who has a mass of 89kg, raises his center of mass by 25 cm. He completes an impressive set of 150 pushups in 5 minutes, exercising at a steady rate If we assume that lowering his body has no energetic cost, what

A box of volume V has a movable partition separating it into two compartments. The left compartment contains 3000 particles, the right one contains 1000 particles, and initially the partition is in the middle so that the compartments are of equal

1. Calculate the total resistance for a 650 ohm, a 350 ohm, and a 1000 ohm resistor connected in series.

What is the denfination of science

Which applications, either for diagnostic purposes or for therapeutic purposes, involve the use of X-rays? Check all that apply. CT scan MRI radiography brachytherapy laser eye surgery radioisotope imaging external beam radiation therapy fluoroscopy

The top walking speed of a fly is 1 cm/s. How far can a fly crawling on the ceiling travel in 6 seconds? A. 1 centimeter B. 1 second C. 6 centimeters D. 6 seconds

Why is it more difficult to slide a crate starting from rest?

17. (16 pts) You set up a two-slit experiment with a laser that produces light with a wavelength of 600 nm.