The initial mass of a radioisotope is 10.0 g. If the radioisotope has a half life of 2.75 years, how much remains after four half lives?

What is the speed of a car with mass of 200kg and acceleration of 5

The photosphere is the innermost layer of the Sun, and it's also the A. nickname for the outer atmosphere of Earth. B. visible surface of the Sun. C. atmospheric pressure of Jupiter. D. invisible surface of the Sun.

What would be a good indicator of the solubility of a substance in a solute? A. whether the substance is a solid a liquid or a gas B. the amount of substance needed to form a saturated solution C. the density of the substance D.

An elevator of mass 3000 kg is ascending at a steady speed of 2.0 m/s. What is the force in the cable supporting the elevator?

what happens when light travels from one medium to another with a different index of refraction at a 0 degree angle of incidence?

What does the slope of a line of best fit represent

A bowling ball is pushed with a force of 22.0N and accerlates at 5.5 m/s square. What is the mass of the bowling ball A - 4.0 kg B-0.25 kg C-25 kg D-4.00 kg

How to eat butter. I want to know how you all eat the butter.

What is the transfer of heat through a solid as a result of molecular action called? radiation convection conduction magnetism?

Explain the process of synaptic transmission, beginning with the neurotransmitters at the axon terminal of the presynaptic cell and ending with the impulse being sent down the postsynaptic cell.