An astronaut measured the surface

gravity of a planet to be 5.77 m/s2. If

its radius is 4.17 x 106 m, what is the

mass of the planet?

?] x 10

kg

Cut out a piece of cardboard in the shape of a letter C and locate the center of mass. is it within the frame of the letter? Can it be balanced at the center of mass? Yes or no. Explain.

What are possible units of speed and velocity

During which phase change will the greatest amount of energy be absorbed by 1 gram of water

An object of mass 80kg moves with a velocity of 4m/s. calculate the kinetic energy of the object

A scientist finds a new life form. The life form is 2 meters tall. It makes its own food. It has tubes that carry food and water through it. It reproduces by making seeds.

Animals that can hear ultrasonic sounds are the what

If the rock has a mass of 1 kg which is the speed of the rock after it has fallen for two seconds

2 Cars A and B both at rest are to set of from a town to a common destination along the same route. Car A was the first to take off and travelled at 2.

In an experiment to measure the acceleration due to gravity, g two values, 9.72 m/s2 and 9.67 m/s2, as determined. if the accepted value of g is: 9.8 m/s2 find the followings: i) the percentage difference of the measurements?

If momentum is conserved in a collision, does this indicate conclusively that the collision is elastic?