Gravity causes the pressure in the ocean to vary with depth

Indicate whether the statement is true or false


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Physics & Space Science

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A water hose has a flow rate of 3.0 kg/s of water. If the velocity of the water as it leaves the hose is 5.0 m/s, then the force to hold the hose is

A. 15 N. B. 26 N. C. 30 N. D. 45 N. E. 57 N.

Physics & Space Science

A nonrelativistic electron is accelerated from rest through a potential difference

After acceleration the electron has a de Broglie wavelength of 880 nm. What is the potential difference though which this electron was accelerated? (h = 6.626 × 10-34 J ? s, e = - 1.60 × 10-19 C, mel = 9.11 × 10-31 kg) A) 2.5 µV B) 2.2 µV C) 1.9 µV D) 1.7 µV

Physics & Space Science

How fast do electromagnetic waves travel?

a. At the speed of sound. b. At the speed of light. c. At one-half the speed of light. d. Six feet per day. e. At varying speeds depending on the electric and magnetic oscillations.

Physics & Space Science

The large space telescope that has been placed into an Earth orbit has an aperture diameter of 2.40 meters. What angular resolution will this telescope achieve for visible light of wavelength l = 4.80 × 10^-7 m?

a. 2.44 × 10^-7 rads b. 2.44 × 10^-4 rads c. 2.44 × 10^-3 rads d. 1.22 × 10^-6 rads e. 2.00 × 10^-6 rads

Physics & Space Science