Which has more kinetic energy, a real car moving at 5 mph or a real car moving at

35mph? How do you know? (explain your reasoning mathematically or logically)

What particle moves in a working circle

Car A has a mass of 1,200 kg and is traveling at a rate of 22 km/hr. Car B has a mass of 1,200 kg and is traveling in the same direction at 25 km/hr. Which of the following statements is true?

A plane flies along a straight line path after taking off, and it ends up 210 km farther east and 90.0 km farther north, relative to where it started. What is the plane's displacement? A. 300 km B. 141 km C. 230 km D. 120 km

Technological design leads to the development and innovation of new technologies. Which statement represents innovation? O Solar panels have increased in efficiency over the past 20 years.

A 50g mass is placed on a straight air track sloping at an angle of 45° to the horizontal. Calculate in metre per second, the acceleration of the load as it slides down and also the distance it will be moved from rest in two seconds

A transformer has a primary coil with 700 turns and a secondary coil with 350 turns. If the output voltage is 410 volts, what is the input voltage? * a.) 245,000 Volts b.) 205 Volts c.) 2 Volts d.) 820 Volts

Your odometer of your car says 54 123 miles when you start your trip, your watch says 9 45 AM When you get to your estination the odometer says 54 miles and your watch says 11 45 AM What is your average velocity (assuming you were traveling due

Briefly explain how an electric motor works.

When is a hypothesis developed in the scientific method? before there is a question after a question has been identified and observations are made after an experiment if the experiment justifies one

Interactive LearningWare 4.1 reviews the approach taken in problems such as this one. A 1800-kg car is traveling with a speed of 14.0 m/s.