A 7000-W engine is propelling a speedboat at 30 km/h. What force is the engine exerting on the speedboat? What force is
water resistance exerting on the speedboat? What part of the
engine’s power is used to overcome this resistance?

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.

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?