Which of the following are not units of power?
Answer: J
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Physics
- Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
- A baseball catcher throws a ball vertically upward and catches it in the same spot as it returns to the mitt. At what point in the ball's path does it experience zero velocity and nonzero acceleration at the same time?
- Which of the following statements applies to the motion of a ball rising and then falling in free fall?
- Acceleration due to gravity is also called
- When a car's velocity is negative and its acceleration is negative, what is happening to the car's motion?
- When a car's velocity is positive and its acceleration is negative, what is happening to the car's motion?
- If you know the acceleration of a car, its initial velocity, and the time interval, which of the following can you predict?
- Suppose you are given a position versus time graph. The slope of a line drawn tangent to a point on the curve of this graph describes what quantity?
- Which of the following is the equation for average velocity?
- The driver of a car traveling at 110 km/h slams on the brakes so that the car undergoes a constant acceleration, skidding to a complete stop in 4.5 s.
- John goes for a run. From his house, he jogs north for exactly 5.0 min at an average speed of 8.0 km/h. He continues north at a speed of 12.0 km/h for the next 30.0 min. He then turns around and jogs south at a speed of 15.0 km/h for 15.0 min. Then he jogs south for another 20.0 min at 8.0 km/h. He walks the rest of the way home.
- John goes for a run. From his house, he jogs north for exactly 5.0 min at an average speed of 8.0 km/h. He continues north at a speed of 12.0 km/h for the next 30.0 min. He then turns around and jogs south at a speed of 15.0 km/h for 15.0 min. Then he jogs south for another 20.0 min at 8.0 km/h. He walks the rest of the way home.
- Moustapha Jones drives east at 100km/hr for 3 hours the back west at 80km/hr for 1.5 hours. Which pair of answers gives his average speed and average velocity?
- In the graph above, a toy car rolls from +3 m to +5 m. Which of the following statements is true?
- In the graph above, what is the correct description of any location to the left of the zero?
- Which of the following units is the SI unit of velocity?
- Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a y-axis.)
- What is the speed of an object at rest?
- Which of the following is a pair of vector quantities?
- A car is moving with a uniform speed of 15.0 m/s along a straight path. What is the distance covered by the car in 12.0 minutes?
- A lightweight object and a very heavy object are sliding with equal speeds along a level frictionless surface. They both slide up the same frictionless hill. Which rises to a greater height?
- The area under the curve, on a Force versus position (F vs. x) graph, represents
- Of the following, which is not a unit of power?
- What is the correct unit of power expressed in SI units?
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.