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3 years ago

Which of the following is true statement about isotopes?

2 answers:

7 0

<span>Notice for the Carbon question they were the same element and the shared the same number of protons. so i think d. is the answer</span>

Ket [755]3 years ago

7 0

Answer:

D. different isotopes for the same element will always have the same numbers of neutrons.

Explanation:

An isotope is the different variant of an element that has different number of neutron. There are various elements found in nature that have different isotopes.

Number of neutrons present in atom is different for the same element which makes the mass of one isotope different from the another.

Example of such isotope : Isotope of hydrogen are Protium, Deuterium and Tritium.

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a student uses a simple machine to help lift a load.when 40N of input force is applied to the machine it is able to lift 160N .w

Akimi4 [234]

4 to 1

Explanation If you look at it as a fraction 160/40 and you reduce it down as far as you can you get 4/1

3 0

3 years ago

A length change 0.08 m will occur for an object that is L= 56 m long. If the coefficient of thermal expansion is5.3 x 10 /C and

ArbitrLikvidat [17]

Answer:

Increase in temperature = 269.54 °C

Explanation:

We have equation for thermal expansion

ΔL = LαΔT

Change in length, ΔL = 0.08 m

Length, L = 56 m

Coefficient of thermal expansion, α = 5.3 x 10⁻⁶ °C⁻1

Change in temperature, ΔT = T - 253

Substituting

0.08 = 56 x 5.3 x 10⁻⁶ x (T - 253)

(T - 253) = 269.54

T = 522.54 °C

Increase in temperature = 269.54 °C

4 0

2 years ago

What is intermolecular forces and how is it related to phases of matter

MakcuM [25]

Intermolecular forces are forces that keep molecules together. For example, the forces between two water molecules. The stronger the intermolecular forces are, the more "solid" is the matter going to be, meaning that the intermolecular forces are the strongest in solids and weakest in gases.
Make sure not to confuse intERmolecular forces (forces between *molecules*) and intRAmolecular forces (forces between *atoms* that make up a molecule).

6 0

3 years ago

In this schematic, the total resistance is 50 ohms. 100 ohms. 1,000 ohms. 100 ohms 10,000 ohms

Mrrafil [7]

The total resistance of the given circuit is if the circuit contains 100ohms,1000 ohms,100 ohms and 10,000 ohms resistors.

Resistance is measured in ohms, and it is represented by the Greek letter omega (Ω). Ohms are named after Georg Simon Ohm (1784-1854), a German physicist who concentrated on the connection between voltage, current and resistance. He is credited for planning Ohm's Regulation.

Resistance estimations are regularly taken to demonstrate the state of a part or a circuit.

The higher the resistance, the lower the ongoing current. On the off chance that strangely high, one potential reason (among many) could be harmed guides because of consuming or erosion.
The lower the obstruction, the higher the ongoing stream. Potential causes: protectors harmed by dampness or overheating.

Since resistors are connected in series, so we know that when resistors are connected in series, total resistance is given by the formula

Rₙ=R₁+R₂+R₃+---------------Rₙ

So, resistors value are 50 ohms. 100 ohms. 1,000 ohms. 100 ohms 10,000 ohms.

Therefore, total resistance is 50+100+1000+100+10000=10250ohm

Hence, total resistance is 10250ohm

To know more about resistance, visit here:

brainly.com/question/29427458

#SPJ4

4 0

8 months ago

Dominic made the table below to organize his notes about mixtures.

Andrei [34K]

Answer:

Althought it us possible to have more then one state, it's also possible to have only one state of matter

Explanation:

You can make solutions of only one state if matter, for example , it two liquids can be mixed to form a solution they are called miscible.

4 0

3 years ago