The focal length of a converging lens is 0.50 meters. an object is placed 1.0 meters from the lens. the distance between the lens and the image is a.) 1 b.) .5 c.) .25 d.) 1.5

Frequency of electromagnetic waves that a radio station is assigned is called

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?