A potential difference (V) is applied to the ends of an object causing a current (I) to flow through it. If the object obeys Ohm's law we can obtain the resistance by

A) multiplying current by voltage.
B) dividing current by voltage.
C) calculating I2V.
D) dividing voltage by current.


D

Physics & Space Science

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An earthquake emits both S waves and P waves which travel at different speeds through the Earth. A P wave travels at 9 000 m/s and an S wave travels at 5000 m/s. If P waves are received at a seismic station 1.00 minute before an S wave arrives, how far away is the earthquake center?

a. 88.9 km b. 1200 km c. 675 km d. 240 km e. 480 km

Physics & Space Science

What do we mean when we say that the universe is expanding?

A) Everything in the universe is gradually growing in size. B) Within galaxies, average distances between star systems are increasing with time. C) The statement is not meant to be literal; rather, it means that our knowledge of the universe is growing. D) Average distances between galaxies are increasing with time.

Physics & Space Science

If you were to measure your pulse rate while in a spaceship moving away from the sun at a speed close to the speed of light, you would find that it was

A) much faster than normal. B) much slower than normal. C) the same as it was here on Earth.

Physics & Space Science

The symbol for the element with the highest electronegativity is ______________

Indicate whether the statement is true or false

Physics & Space Science