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

radio

radar

scuba

sonar

A stack of 55 business cards is 1.85 cm tall. Use this information to determine the thickness of one business card.

Convert 1.5 radian into milliradians.

When the photosphere is covered, the corona, chromospheres, and prominences are visible. true or false?

Which actions are part of a citizen responsibility to participate in government

What is empirical evidence and what's is it not

What is the speed of a 50 g rock if its de Broglie wavelength is 3.32 x 10?

The difference between newtons first law of motion and newtons third law of motion

A sound wave traveling at STP has a period of. 0023 seconds. The wavelength of this sound is closest to 1) 1.4E5 2) 6.9E-6 3) 0.76m 4) 76m

Static charge develops on a substance as it acquires or loses protons due to friction. a. True b. False

A milk truck carries milk with density 64.6 lb/ft3 in a horizontal cylindrical tank with diameter 12 ft. (a) Find the force exerted by the milk on one end of the tank when the tank is full. (Round your answer to the nearest integer.) lb