If a refrigerator draws 2.2 A at 120 V, What is its resistance?

A passenger in a train accelerating smoothly away from a station observes that a child's yo-yo hanging by its string from a luggage rack makes a 10 degree angle from the vertical.

What is heat? Describe how you could made a sound wave have a higher pitch. Describe how you could make a sound wave have a higher volume.

A 0.12-kg ball is moving at 6 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 14 m/s. What is the change in the magnitude of the momentum of the ball? A. 0.39 kg*m/s B. 0.42 kg*m/s C. 1.3 kg*m/s D. 2.4 kg*m/s

What is the final temperature after 80.0 j?

A roller coaster car travels up and down the hills of its track. Neglecting friction, the sum of its kinetic and potential energy A. equals the sum of the thermal energy generated by friction during the ride. B.

How are molecules in a neutral state different from ions?

What is a hypothesis for why mitochondrion has separate dna from the nuclease?

An airplane flies 1350km in 2 1/4 hours. What is its average speed in kilometers per hour?

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?