What is the number of neutrons in an element with a mass number of 117 and a proton number of 67?

-67

-117

-50

-0

How many species go extinct every day?

What is the acceleration of gravity?

What is earth's average distance from the sun called? a. a parsec b. a major axis c. a light-year d. an astronomical unit

A gas heated to millions of degrees would emit

How much current flows through a resistor of 285 ohms if the potential difference across the resistor is 122 volts?

Why is it useful to calculate average speed?

Which describes freefall

Suppose you were examining a pulsing radio signal from a stellar remnant in a distant part of the Milky Way.

Which pair of properties do all liquids have? A) Fixed volume; no definite shape B) Conducts electricity well; compressible C) Compressible; brittle D) Good conductor of heat; takes shape of container

0.2000 kg of water at 20.00°C is contained in a 0.1000-kg copper container. The container is shaken vigorously for 10.00 minutes to cause the temperature to rise to 22.00°C. Calculate the work done on the system and the heat supplied to the system.