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.

Which chemical is released by brain cells along an activated reward pathway?

Which of the following scenarios would create the most friction between the two surfaces? A.) a shoe with a rubber sole moving against a smooth tile floor B.) a shoe with a wooden sole moving against a smooth tile floor C.

How to change milomilicenters into kilometer

Ho Chi Minh led the Communist forces in Indochina and in North Vietnam. a. True b. False User: Hitler and Mussolini headed two of the Axis powers of World War II. a. True b. False

What most closley defines population density?

What kinetic energy has 1 tone car traveling at 15 m/s

Ceres is a dwarf planet located in the main asteroid belt.

Which solid is the best thermal insulator A. brass b. ice C. styrofoam D. copper

When a high-mass star explodes, which of the following is left over in the center? A. Black hole B. Neutron star C. White Dwarf D. either a or b

Which object is an insulator?