Which of the following contains direction? Mass, speed, velocity, or distance.

a mass is measured as 6.2kg in one experiment and as 6.20kg in another. in what way do these two measurements differ?

The distance between Earth and Mars is 225 million km. When converted using the conversion factor 1 AU = 1.5 * 108 km, the distance between the planets is. The astronomical unit (AU) is a light-year.

Another machine uses an input of 200 newtons to produce an output force of 80 newtons what is the mechanical advantage of this machine

All of the planets and their satellites orbit the Sun in the same direction, and all their orbits lie near the same plane. True

A constant force of f = 47i + 30j moves an object along a vector d = 13i - 8j, where units are in pounds and feet. find the work done.

What does the second law of thermodynamics say about entropy apex?

If an oscillation is moving up and down in the y-axis and the wave is traveling to the right in the x-axis, what type of wave is this?

What can result if an earthquake causes a sudden vertical change in the sea floor? A. a tsunami B. liquefaction C. soil creep D. sheet erosion

Suppose gene A on the left chromosome is damaged and no longer functions. what form of the trait would show? Why?

I'm completely lost in physics, the Kinematics and dynamics units ... My exam is coming up ... If a biker travelling at 6.4m/s sees biker B 34m ahead on the road travelling 4.7m/s. How far will biker B get before biker A catches him?