An asteroid is in circular orbit at an altitude of 2100 km above the surface of a planet with an orbital speed of 6.3 km/s. The minimum speed needed to escape from the surface of the planet is 11.9 km/s. The mass of the asteroid is closest to:

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s