How do the numbers of protons and electrons in an atom affect its electrical charge

If the temperature increase, the rate of chemical reaction also increase because the particles start moving faster. If the surface area increase, the rate if chemical reaction also increases because the chances of the collision become more.

With the switch closed, how does the voltage across the 20-ω resistor compare to the voltage across the 10-ω resistor?

Because of its retrograde spin, Venus has a longer solar day than its year : Select one: TRUE FALSE

What is true of transverse waves? a. Surface waves are transverse waves only. c. An example of transverse waves is sound waves. b. Transverse waves vibrate parallel to the direction d. Transverse waves travel through a medium. of the wave's motion.

Why is alpha rays not suitable to scan baggage at the airport?

The mass of the Sun is 1.99 * 1030 kg. Jupiter is 7.79 * 108 km away from the Sun and has a mass of 1.90 * 1027 kg. The gravitational force between the Sun and Jupiter to three significant figures is * 1023 N.

You measure the magnetic field of a long, current-carrying wire to be B is equal to start fraction 50 times mu naught over pi end fraction at a distance of r = 7.5 cm. How much current is running through the wire?

In any food chain or web, the original source of energy is

Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land

How much energy (in joules) is required to evaporate 0.0005 kg of liquid ammonia to vapor at the same temperature?