A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 of water and the surface area of the bottom of the container is 5.00 The height of the lower part of the container is 2.50 m and the neck contains a column of water 8.50 m high. The total volume of the column of water in the neck is 0.200 What is the magnitude of the force exerted by the water on the bottom of the container?

A.

B.

C.

D.


B.

Physics & Space Science

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A light-year is a unit of _____

A) time B) luminosity C) distance D) mass

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Planet Roton has a mass of 4.0 × 1023 kg and a radius of 2.0 × 106 m. With what speed should a space probe be launched from the surface of Roton so as to achieve a maximum distance of 3.0 × 106 m from the center of Roton?

A. 4.2 km/s B. 3.9 km/s C. 3.0 km/s D. 3.4 km/s E. 6.0 km/s

Physics & Space Science

In a vacuum the speed of light waves compared to the speed of radio waves is

A. faster B. slower C. the same

Physics & Space Science

You can see your image in a mirror because of

a. interference. b. diffraction. c. specular reflection. d. diffuse reflection. e. polarization.

Physics & Space Science