8. A sprinter on a school track team is running north at a velocity of 6.0 m/s. After 5.0 s, she

is running south at 4.0 m/s. Calculate the average acceleration for this interval.

What is the unit for electric charge? Kilogram Newton Electron Coulomb

Which of the following statements about electric field lines associated with electric charges is false? Electric field lines can be either straight or curved. Electric field lines can form closed loops.

A hotel wants to put a fence around a circular spa. The radius of the spa is 5/√2-1 feet. If the fence is built along the immediate edge of the spa, what is the perimeter of the fence?

an incandescent lightbulb has an efficiency of 2.1% and a power of 60 w. how much light energy does the lighbulb produce in 1 second

A car travels at uniform acceleration over a tine interval of 20.0s. its initial velocity is 11.0m/s and its final velocity is 33.0 m/s. what distance did it travel during this time? 880m 220m 440m 50m

A temperature of 200°F is equivalent to approximately a. 37.8°C. b. 232°C. c. 93.3°C. d. 840°C.

Two linear polarizing filters are placed one behind the other, so that their transmission directions are parallel to one another. A beam of unpolarized light of intensity?0 is directed at the two filters.

What is the term for the scientific study of the universe? oceanography astronomy geology meteorology

Which component of a motor causes the magnetic field produced by the coil to regularly reverse and therefore always be repelled by the fixed magnetic field

What is a parallelogram