Samantha pulls a wagon with her dog in it. The mass of the wagon and the dog together is 45kg. The wagon accelerates at a 0.85m/s2. What force is Molly pulling the wagon with.
Water moves from Earth's surface to the atmosphere and back to Earth's surface again in a process known as the water cycle. Which of the following is the major form of energy driving the water cycle? A. nuclear energy B. geothermal energy C. solar energy D. chemical energy
What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s?
If a car headlight's light travels at the speed of light, then does the car technically travel at the speed of light since the headlights are part of a car, and the light is made from the headlights?
How can two atoms of the same chemical element be different? A. They may be different allotropes of the element. Each allotrope of the same element has a different number of neutrons. B. They may be different isotopes of the element. Each isotope of the same element has a different number of electrons. C. They may be different isotopes of the element. Each isotope of the same element has a different number of neutrons. D. They may be different allotropes of the element. Each allotrope of the same element has a different number of electrons.
an airplanes propeller completes one revolution in 65ms. a)what is the angular speed in rpm? in rad/s?
The power input into the food processor is 1150W. The power of the spinning blade is 900W. Calculate how much energy is wasted when the food processor is used for two minutes. show clearly how you get to your answer and give the unit. (power=energy transferred/time taken.) energy=
