Positive ions differ from neutral atoms in that

A)

positive ions have lost protons.

B)

positive ions have gained protons.

C)

positive ions have lost electrons.

Eliminate

D)

positive ions have gained electrons.

According to a rule-of-thumb, each five seconds between a lightning flash and the following thunder gives the distance to the flash in miles.

What is the range of these data? 6,9,2,12,3,5,9

A net force of 100 N is moving a mass with an acceleration of 5 m/s. What is the mass of the object

How do you figure out mechanical energy

What is the function of the commutator in a DC motor? A. to spin the magnet B. to change direct current into alternating current C. to change alternating current into direct current D. to spin the wire coil

A measure of how much pulling, or tension, a material can withstand before breaking is - A. hardness. B. brittleness. C. tensile strength. D. malleability.

How work done against gravity can be expressed?

An electron is acted on by two electric forces, one of 2.7*10-14 N acting upward and a second of 5.8*10-14 N acting to the right. What is the magnitude of the electric field at the electron's location?

A satellite on a Low Earth Orbit is flying with a speed of 7.65 km/s. The vertical component of the Earth's magnetic field is 35.3 μT at the current location of the satellite.

A central air conditioner uses 4.5 kilowatts. It runs for 10 hours over the course of a day. How much energy does the air conditioner use during that day?