A boat travels north across a river at a velocity of 22 meters/second with respect to the water. The river's velocity is 2.2 meters/second to the east. What is the resultant velocity of the boat, as measured from the land?

Two parallel conducting plates are separated by 4.00 cm. The electric field strength between the two plates is 5.70*10⁴ V/m. What is the magnitude of the potential difference between the plates?

What is the difference between V (peak voltage) and Vrms (root-mean-square) of AC voltage source?

12 g of coal contains approximately 6 * 1023 atoms of carbon. How many atoms would be in 1 kg of carbon? Show your working.

What kind of energy transformation in a stereo

After the discovery of Uranus, astronomers calculated its orbit and predicted its position in the sky using Kepler's laws of planetary motion, which had been known since the early 17th century.

For glass fragments to be individualized, what must be true? A. They must fit together B. They must have the same density C. They must look the same D. They must be the same color

In what way would a digital thermometer be preferable to those from a liquid-based thermometer? Digital thermometer readings are easier to use when performing calculations.

Why does the core of the sun contain more helium and less hydrogen than the surface of the sun?

What happens to a light ray passing through the center of a lens?

A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.870 m/s at an angle of 35.0° above the table, and it lands on the magazine 0.0770s after leaving the table. Ignore air resistance.