A ball is thrown upward with a speed of approximately 30 ms. Which of the following sets of numbers are good estimates of the ball's velocity 1 second. 2 seconds and 3
seconds later?
a. -10 m/s. -10 m/s. -10 m/s
b. 30 m/s. 30 m s. 30 m/s
c. 40 m s. 50 m s. 60 m/s
d. 20 m s. 10 m s. Cms

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.