How does a cell phone use electromagnetic radiation?

An astronaut is being tested in a centrifuge. The centrifuge has a radius of 5.20 m and, in starting, rotates according to θ = 0.170t2, where t is in seconds and θ is in radians. When t = 4.

What is the sequence of bases on Dna strand b from left to right

If we double the mass of the sun, what would happen to the gravitational force between the sun and earth?

How many mlb teams are there

a bird has a mass of 0.2kg and is flying 10m above the ground with a speed of 7 m/s. What is the total mechanical energy of the bird?

Rhea kicks a soccer ball at 13 km/h to Sean. After kicking the ball, the speed of the soccer ball from Rhea's reference frame is 13 km/h. The speed of the soccer ball from Sean's reference frame is 22 km/h. a.

How is using a digital signal like turning on and off a regular light switch?

Who were the 26 or 27 scientists that found the elements on the periodic table?

What particle is used as a beam to treat cancer

Heat engine x has an efficiency of 67%. heat engine y has an efficiency of 82%. which best compares these two heat engines?