An organism is best described by which of the following?

A. A group of cells working together

B. A group of atoms working together

C. A group of tissues working together

D. A group of organ systems working together

There are two equations from which a change in the gravitational potential energy u of the system of a mass m and the earth can be calculated. one is

The gravitational attraction between two objects will blank if the objects move further apart

A beam of 1.0 MHz ultrasound begins with an intensity of 1000 W/m². After traveling 12 cm through tissue with no significant reflection, the intensity is about A. 750 W/m² B. 500 W/m² C. 250 W/m² D. 125 W/m²

A 600 N astronaut travels to an asteroid where the gravitational force is one-hundredth that of Earth. What is the astronaut's weight on the asteroid? A 6 N B 6 kg C 600 kg D 60,000 N

A juggler tosses balls vertically to height H. To what height must they be tossed if they are to spend twice as much time in the air?

Find the dimension of density

Technician A says that all friction and steel plates in a clutch pack should be replaced during and overhaul. Technician B says that the automatic transmission fluid cooler should always be flushed when a unit is rebuilt or replaced.

Yor older sister drove 500 miles to college one way in ten hours. what is her average velocity?

Deep sea divers wear diving suit give reason

Why proton doesnt repll each other in nuclous of an atom?