At about 55 meters per second, a falling parachuter (before the parachute opens) no longer accelerates. Air friction of 55 m/s. How long would that take?

A light bulb with a resistance of 2.9 ohms is operated using a 1.5 volt battery. At what rate is electrical energy transformed in the ligthbulb? 1) 0.52W 2) 0.78W 3) 4.4W 4) 6.5W

A radioactive isotope has a half-life of ten days. how much of a 100 gram sample will be left after 20 days

Two Earth satellites, A and B, each of mass m, are to be launched into circular orbits about Earth's center. Satellite A is to orbit at an altitude of 5580 km. Satellite B is to orbit at an altitude of 21000 km. The radius of Earth REis 6370 km.

Tell the order of vessels a blood Cell travels through starting from the heart.

Which index of refraction represents the most optically dense material? a. 1.58 b. 1.77 c. 2.42 d. 2.65

What is the particle that an atom can lose or gain in order to form a charged ion

If you have 0.306 m3 of water at 25.0°C and add 0.102 m3 of water at 95.0℃, what is the final temperature of the mixture? Use 1000 kg/m3 as the density of water at any temperature. Number O Previous ⓧ Give Up & View Solution.

If b is the amplitude of the magnetic field vector, find the complete expression for the magnetic field vector b⃗ of the wave.

An electron and a proton are separated by a distance of 1 m. What happens to the size of the force on the first electron if a second electron is placed next to the proton?

Airbags will deploy no matter from what angle your car is hit.