Will !

a car is traveling at a constant velocity of 60 km/h for 4 hours.

choose the correct statement about the acceleration of the car.

a) the acceleration of this car is zero.
b) the acceleration of this car is positive.
c) the acceleration of this car is negative.
d) the acceleration of this car is 15 m/s.

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?