When the amount of a radioactive substance is reduced by 50%, what has occurred? a half-life beta radiation alpha radiation gamma radiation?

In a science museum demonstration, a person on an insulated stand touches a metal sphere. the sphere has a large charge. explain why the person's hair stands on end

How could you compare the energy carried in two different longitudinal waves

What is the mass of an object that is accelerating at 10 m/s^2 when a force of 2,386 N is exerted

What is the force between two small charged spheres that have charges 2x10 (power - 7) c and 3x10 (power - 7) c and are placed 30 cm apart in air?

Infrared radiation has frequencies from 3.0*1011 to 3.0*1014 Hz, whereas the frequency region for microwave radiation is 3.0*108 to 3.0*1011 Hz. (higher than, lower than, or the same) We can say that:1.

True or False. Alcohol is toxic to most fruit flies, but fruit flies that metabolize alcohol quickly survive alcohol exposure better than normal metabolizers.

Aerobic exercise is exercise where oxygen is not present. Question options: True False

The force between a pair of. 005 charges is 750 N. What is the distance between them?

A perpetual motion machine can never be built because it is not possible to eliminate A) Momentum B) Inertia C) Elasticity D) Friction

What makes the lumbar vertebrae different from the cervical vertebrae and the thoracic vertebrae?