True or false? Three common voltage sources are batteries, solar cells, and generators.

Answers

Answer 1

Answer: the answer to this question would be true

Answer 2

Answer: True .
Hope this helped!!

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What is one key physical difference between transition metals and poor metals?

Answers

Answer:

HARDNESS

Explanation:

One key physical difference between transition metals and poor metals is their "" Hardness"" which is

the ability of a material to resist deformation. The test for hardness can be determined by a standard test which is the measurement of surface resistance to indentation. hardness tests are defined the shape and also type of indent.

The poor metals are also referred to as post transition metals. They are elements that are found at the right of the transition metals,they are located in the p-block,Their properties is as a result of their low melting and boiling point compare to other metals.They have high electronegativity and conductivity but softer texture compare to other metals.They are very soft more than the transition metals, but they cannot be cannot be classified as metalloids.

Poor metals includes elements in the periodic table such as; aluminium, gallium, indium, thallium, tin, lead, bismuth, and polonium.

Answer:

Hardness

Explanation:

I got it correct

when the lowest frequency above the fundamental is played, at what height will the particles' displacement be out of phase and have the same amplitude as that of the particles 8.0cm above the surface of the water? give your answer as a distance above the surface of the water.

Answers

Answer:

theg watte wil shajka

Explanation:

bshswu

Mass is measured using _____.scales
a triple beam balance
a mass meter
all of the above

Answers

Answer;

-A triple beam balance

Explanation;

-Mass is the amount of matter in an object. Move to a different planet and an object's weight will change, but its mass will be the same. There are a couple of ways to measure mass. The Mass of an object doesn't change when an object's location changes. Weight, on the other hand does change with location.

-Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.

Mass is measured using scales, a triple beam balance, or a mass meter.

What are scales used for?

Scales are commonly used for everyday measurements, where an object's weight is indirectly measured by the force it exerts on a spring or load cell.

A triple beam balance is a type of mechanical balance that uses a combination of sliding weights to determine mass.

Answers

Because Star 1 is 63 light years from Star 2 and Star 2 is 75 light years from Star 3 we can form a simple equation to get our answer.

75 + 63 = 138

Therefore your answer would be...

D. Star 1 is 138 light years away from Star 3.

I just took th test it is letter D for sure!

What is the speed of a 500 kg elevator that has 4000 J of energy ?

Answers

Energy =sxm
S =4000/500
=Answer

A car that is initially moving to the right with a velocity of 4 m/s is pushed by a -5 N force as it moves from 5 meters to 20 meters. How much work is done to the car by this force?