Olga is given a pure substance that reflects light. she has a mallet and a heat source. she will know if she has a metal if she?

A glacier moves with a speed of 35 nm/s. How many years would it take for the glacier to move 0.9 km? Assume there are 365 days in a year. Answer in units of y.

A cubical block of iron 10 cm on each side is floating on mercury in a vessel. (i) What is the height of the block above the mercury level (ii) Water is poured into the vessel until it just covers the iron block.

A scientific blank is a proposed explanation that can be tested

Find the product of 30--√ and 610--√. Express it in standard form (i. e., ab√). Give the value of a followed by the value of b separated by a comma.

Will a burn caused by 1.0 kg of steam at 100? c do more damage to your skin than that caused by 1.0 kg of water at 100? c? explain your reasoning.

Which of the following statements about Em waves is true? A. Em waves all have the same speed B. Em waves all have the same wavelength C. Em waves only travel through water D. Em waves all have the same amount of energy

A teacher has asked four students to state a scientific theory. Which student is correct?

What are the two main currents that affect the US on the east and west coast?

What role do volcanoes play in the flow of energy and cycling of matter on earth?

How does uniform linear motion differ from uniform circular motion?