A motor uses an electric current to produce a magnetic field and create mechanical energy, true or false?

A car traveling at 70 mph70 mph down the interstate collides with a bug trying to cross the highway. Which of the following statements best describes this collision? The car exerts a smaller force on the bug than the bug exerts on the car.

A boat is towing two skiers at the same time. how long should the tow lines be? both lines should be the same length. the oldest skier's line should be longer. the skier with the most colorful skis should have a longer line.

Statement A: Area of a rectangle with measured length = 2.536 m and width = 1.4 m. Statement B: Area of a rectangle with measured length = 2.536 m and width = 1.41 m ...

Two joggers are running with constant speed in opposite directions around a circular lake. One jogger runs at a speed of 2.15 m/s; The other runs at a speed of 2.55 m/s.

A plane is traveling with an air velocity of 720 kilometers/hour due east. It experiences a headwind of 16 kilometers/hour. Find the resultant velocity and direction of the plane with respect to the ground.

Heat flows due to: Select one: a. conduction b. convection c. radiation d. all of the above

A mine elevator is supported by a single steel cable 0.0125 m in diameter. The total mass of the elevator cage and occupants is 6450 kg. By how much does the cable stretch when the elevator hangs by 362 m of cable? (Neglect the mass of the cable.

Express the displacement Δy of an object travelling with acceleration a during a time period Δt that has an initial velocity vi.

The sun emits electromagnetic waves with a power of 4.0 * 10²⁶ W. Determine the intensity of electromagnetic waves from the sun just outside the atmospheres of (a) Venus, (b) Mars, and (c) Saturn.

If you push an object twice as far while applying the same force, you do ...