What investigation doesn't involve hypothesis

Calculate the pressure in SI unit when a force of 100 dyne acts on area of 0.02cm²

Technician A says a that a voltmeter can be used to monitor the output signal of an optical sensor. Technician B says that optical sensors should be tested with an oscilloscope because of the sensor's speed. Which technician is correct? A.

Imagine you are sitting in front of a pizza. Before you eat it, imagine what you are sensing - smells, sites, touch sensations.

The two continental ice sheets that exist in the world today are:

You have a 7.04 W, 236 Ω resistor. What is the maximum current that should be allowed in it? Answer in units of A.

An experiment is performed to obtain the value of a physical property. If the true (i. e., correct) value of the property is 50 and the measured (i. e., experimental) value is 32, the percent error of the experimental result is:

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What two factors determine how fast weathering occurs

A sound that's produced by a single wave at a constant frequency and with no overtones is called

Which of the following is ignored when determining the relative mass of atoms? protons nucleus electrons. neutrons