Julianna blows air onto the balloon to inflate it what can be known about the atoms of the air

A boy on a 1.9 kg skateboard initially at rest tosses a (n) 7.8 kg jug of water in the forward direction. if the jug has a speed of 3.2 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.

Which of the following statements about the planets is not true? a. Mercury has a greater eccentricity than Venus. b. Uranus has the smallest mass of the outer planets. c. Neptune has the shortest rotation period of any planet. d.

Two elevators begin descending from the same height. Elevator A has descended 4 feet after one second, 9 feet after two seconds, 14 feet after three seconds, and so on. Elevator B has descended 3.5 feet after one second, 6.

28. the maximum distance that the particles of a medium move from the rest position is the a. amplitude of the wave. b. wavelength of the wave. c. frequency of the wave. d. speed of the wave

How does a new cell formed by mitosis compared with the original cell

Electrons flowing into a resistor make that end A. positive with respect to the other end B. negative with respect to the other end C. higher in resistance D. extremely warm

The force of air resistance acts to oppose the motion of an object moving through the air. A ball is thrown upward and eventually returns to the ground.

The temperature of a substance during an experiment can be modeled by the function f (x) = - 7.5cos (πx30) + 31.4, where f (x) is the temperature °c and x is the number of minutes into the experiment.

Which of the following are good conductors? A. A rubber tire B. A penny C. A newspaper D. An aluminum soda can E. Water F. Air

Ideentify the two atmospheric layers that contain air as warm as 25 degrees Celsius.