What is power?

the magnitude of a force needed to move an object

how much work can be done in a given time

the distance over time that an object moves

the energy needed to create work

magine that Mary is planning a vacation and has to choose between two vacation spots. Based on the phenomenon of selective thinking, if asked to reject a choice, which spot would Mary reject?

What is si unit of drift velocity And wheater it is scalar or vect or

How does beam spreading affect the temperature on earth and the seasons

A 1.41 µF capacitor charged to 51 V and a 2.49 µF capacitor charged to 31 V are connected to each other, with the two positive plates connected and the two negative plates connected. What is the final potential difference across the 2.

Which statement is correct? Select one: A. Light, in a vacuum, travels at the same speed even if the light source is moving. B. Light given off from a moving source will travel faster in a vacuum. C.

During a medical condition screening lung capacity testing is a standard procedure. True of false

Which of the following is a unit of energy found in food? a). vitamin b) calorie c) nutrient d) water

As one goes from left to right in a period, which of the following is true? A. The number of protons decreases. B. The number of valence electrons increases. C. both A and B D. none of the above

Which of the following surfaces reflects the most light A yellow cloth B. tree trunk C aluminum foil D. Concrete sidewalk

Which part of an atom has a mass approximately equal to 1/2000 of the mass of a common hydrogen atom? A. nucleus B. electron C. proton D. electron cloud