After the discovery of the electron, scientists knew that atoms must also have positively changed particles because?

A. Atoms have mass

B. Atoms have electrical charge

C. Atoms have neutral charge

A forklift does 450 J of work to lift a 150 N hot tub. How high is the hot tub lifted? Round your answer to the nearest whole number.

Which set of atoms will form an ionic compound? A) one calcium atom with an oxygen atom B) two hydrogen atoms with one oxygen atom C) one oxygen atom with another oxygen atom D) two phosphorous atoms with five oxygen atoms

Select the correct answer. Which situation will have the highest resistance? A. long wire and high temperature OB. short wire and high temperature C. long wire and cold temperature D. short wire and low temperature

How do elements form? A. Through the cooling of molten lava B. Through chemical reactions C. Through the evaporation of seawater D. Through fusion in stars and supernova I narrowed it down to B and D, Those make the most sense to me

4x + 7y = - 23 8x + 5y = - 1

A 32kg kid on a sled sliding over some rough snow is acted on by a frictional force which reduces its velocity form 8.5 m/s to 4.1 m/s in 3.0 seconds what is the magnitude of the frictional force?

Yellow light with a wavelength of 5.89 x 10-7m travels through quartz glass with a speed of 1.94 x 108 m/s. What is the frequency of the light? A) 3.29 Hz B) 3.04 x 10^-15 Hz C) 30.36 Hz D) 3.29 x 10^14 Hz

What type of OS is very fast and small, and is often embedded, or built into the circuitry of a device?

What is the magnitude of the final velocity of the combined cars?

It is a science question and the question is that which type of cloud would most likely produce a thunderstorm