In beta decay, what is emitted?

an electron

a helium-4 atom

a neutron

a photon

a radionucleus

What happens when a force exerted on an object causes the object to move? O Work is done on the object. The object's energy is destroyed. O Potential energy is created. O Kinetic energy is created.

Which of the following electrons emits the most energy? a. an electron moving two energy levels closer to the nucleus b. an electron moving two energy levels farther from the nucleus c. an electron moving one energy level farther from the nucleus d.

Why are most large astromical telescopes reflecting telescopes rather than refracting telescopes?

How many Adoms are in the human body

There are approximately 200 species of mice that live all over the world. Deer mice are a particular species of mice that prefer to live in forests, prairies, and fields.

Calculate the speed for a car that went a distance of 125 miles in 2 hours time

A small 25 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of 1.85 m/s2. The car makes it one quarter of the way around the circle before it skids off the track.

A train travels 120 km in 2 hours and 30 minutes what is the average speed

How many constellations are there?