What do cell phones require to work?

A. The GPS system

B. Ultraviolet rays

C. A cellular system

D. X-rays

Resistors labeled 100 Ω have true resistances that are between 80 Ω and 120 Ω. Let X be the mass of a randomly chosen resistor. The probability density function a. What proportion of resistors have resistances less than 90 Ω? b.

How long does it take to drive 2376 miles at 65mph?

What is the probability of two tall pea plants, heterozygous for all the tall allele, producing a short pea plant

What is the unit of energy?

Formula for velocity

A car approaches a pedestrian standing on the side of the road. The car is traveling at 24.2 m/s. The horn of the car emits a sound wave with a frequency of 482 Hz. What frequency is heard by the pedestrian

Where would a bowling ball and a napkin fall with the same acceleration?

The rate at which the earth's surface loses heat and keeps earth temperature at which living things can survive

Describe the motion of something floating in water waves

A trailer mechanic pushes a 2500 kg car, home to a speed v, performing a job during the 5000 J. In this process, the car moves 25 m.