Aboy is pushing a chair by applying a force of 5 newtons. his mother him push it faster by applying an additional force of 7 newtons in the same direction. what is the net force acting on the chair?
a. 2 newtons
b. 5 newtons
c. 7 newtons
d. 12 newtons
e. 14 newtons

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.

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

The ph is the a.independent variable b.the dependent variable c.control group