Using Dimension Analysis notation (where length is represented by [L], mass by [M], and time by [T), and constants are ignored), what are the dimensions of the following:
a. A distance of 987 km
1
b. A distance of 3 m
C. A speed of v = 30 m/s
d. A Kinetic Energy (72 m v?) of 5 Joules (The Joule is a unit of energy)
An acceleration of 3m/s/s
e.

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)