When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?

a. electrical and thermal

b. thermal and radiant

c. radiant and nuclear

d. nuclear and kinetic

What polarity is used for the short circuit transfor mode when welding steel?

In an 8.00 km race, one runner runs at a steady 12.0 km/h and another runs at 14.8 km/h. How far from the finish line is the slower runner when the faster runner finishes the race?

A mirror what a flat surface is a a.) convex mirror b.) concave mirror c.) plane mirror d.) virtual mirror

What name is used for scientists who study the weather in an area over a long time, such as 200 years? Hydrologists weather reporters climatologists balloon specialists

An alloy is made of a material of specific gravity 7.87 and another material of specific gravity 4.50. The alloy of mass 750g has an apparent weight of 6.6N when totally immersed in a liquid of specific gravity 0.78.

Which force does not operate at a distance of 1 m? A. Weak nuclear O B. Electric C. Gravitational D. Magnetic

The deflection of alpha particles in rutherford's gold foil experiments resulted in what change to the atomic model?

What happens during evaporation? A liquid changes to a gas. A liquid changes to a solid. A gas changes to a liquid. A solid changes to a liquid.

In a nuclear reaction, what is the name for the difference in mass when one type of matter is converted into another? A. radiation B. nucleons C. antimatter D. mass defect

Aspect of the physical world