What is the streak of a mineral used for?

A.

weighing the mineral

B.

measuring the hardness of the mineral

C.

identifying the mineral

D.

finding the volume of the mineral

Technician A says that distilled or clean drinking water should be added to a battery when the electrolyte level is low. Technician B says that fresh electrolyte (solution of acid and water) should be added. Which technician is correct?

Which of these is a mixture of compounds? A) sodium (NA) and magnesium (Mg) B) lithium (Li) and table salt (NaCl) C) CO2 and CH4 D) hydrogen (H2) and oxygen (O2) combining to make water H2O

Which is the most accurate description of how the coolant works in an engine? Coolant absorbs thermal energy. Combustion absorbs thermal energy. Coolant absorbs chemical energy. Combustion absorbs chemical energy.

An African elephant can reach height of 13 feet and possess a mass of as much as 6000kg determine the weight of an African elephant in Newton's

What kinds of telescopes are used to measure parallax

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric