Which of the following is an application of the Doppler effect used by submarines?

radio

radar

scuba

sonar

Which cell structure is found in plant cells but not in animal cells? A). cell membrane B). cell wall C). cytoplasm D). nucleus

A transformer has an input of 12 v and an output of 60 v. if the input is changed to 9 v, what is the output voltage

What is the measure of an average kinetic energy?

Which units are used to measure both velocity and speed? Select three options. m/s dt km/h mph Iph

You weigh 716 newtons on Earth. You travel to a newly discovered planet, Planet X. Planet X has a mass that is 3 times that of Earth, but it also has a radius that is twice as large. What is your new weight in newtons on planet x?

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

Gamma radiation can be significantly reduced by ... A sheet of paper Air A 3 mm thickness of aluminium Several cm of lead