Physics High School

Which of the following is a base?

A. Lemon Juice
B. Baking Soda
C. Vinegar

Answers

Answer 1
Answer:
B
Explanation
Because you put baking soda first then vinegar which makes it bubble and rise hope this helps

Related Questions

How much force is required to raise a 0.2 kg mass?

please only answer if you know it.

Answers

since f= ma and your givens are m=0.2 kg and gravity (also acceleration) is 9.8 m/s [down], to find the force sub the two into the equation so that: f= (0.2)(9.8) which should equal 1.96 N.

We have that for the Question "How much force is required to raise a 0.2 kg mass?" it can be said that

The Force required to raise W=1.962N will be F=1.962N since F=W

F=1.962N

From the question we are told

How much force is required to raise a 0.2 kg mass?  

Generally the equation for the Weight   is mathematically given as

[tex]W=M*g\\\\W=0.2*9.81\\\\W=1.962N\\\\[/tex]

Therefore

The Force required to raise W=1.962N will be F=1.962N since F=W

F=1.962N

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what is meant by si unit?

Answers

Answer:

The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now known as the International System of Quantities: they are notably a basic set from which all other SI units can be derived.

Explanation:

Friction converts Kinetic energy to what type of energy?​

Answers

Answer: Friction between the two surfaces converts kinetic energy into thermal energy.

Explanation: Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Which of the following are vector quantities? Select all that apply.
10 degrees Fahrenheit
10 m
7 miles southwest
9 steps to the left
0 75 mph north

Answers

Answer:

7 miles southwest

9 steps to the left

75 mph north

Explanation:

A vector quantity has magnitude and directions. Vector is a terminology used to describe physical quantities with this attribute.

The opposite of vectors are scalar quantities. They only have magnitude but no direction.

The choices which indicates a specific direction is  a true vector.

7 miles south west is displacement of a body

9 steps to the left is displacement

75mph north is a velocity

Displacement and velocity are physical quantities that are vectors

Describe how a neutral material becomes attracted to a negatively charged object brought near it.

Answers

Answer:

Electric force

Explanation:

It’s like static stuff

What is the mass of an object that experiences a gravitational force of 685 N near Earth's surface where g

Answers

Answer:

mass = GPE divided by gxh

Explanation:

Answer:

69.9 kg

Explanation:

w = mg

m = w/g

m = 685/9.8

m = 69.9 kg


⚠️ HELPPPP PLEASE ⚠️

Which of the following was established by the Continental Congress?

O The Smithsonian

O The Supreme Court

O The US Post Office

O the Continental Army

Answers

Answer:

The second Continental Congress started the Continental Army

Explanation:

The Smithsonian was established by the continental congress

A scientist would most likely need to update her model win it a has become too simple be no longer supports the latest results see reduces the need for verbal explanation of data or tea no longer appears interesting

Answers

The question is incomplete, the complete question is;

A scientist would most likely need to update her model when it

a.has become too simple.

b.no longer supports the latest results.

c.reduces the need for verbal explanation of data.

d.no longer appears interesting.

Answer:

b.no longer supports the latest results.

Explanation:

In science, models are prepared to explain experimental results. Each model must have a solid framework supported by experimental results.

However, science is never static. Given the dynamic nature of science, it is possible that latest experimental evidence may no longer support the existing model and the model will need to be reviewed in the light of emerging experimental results.

Por que es posible suponer que la energía térmica que gana el agua en un calorímetro es igual a la energía térmica que pierde la muestra que se va a probar

Answers

Answer:

El material del calorímetro es aislante, conducción térmica entre sustancias y alrededores casi nula.

Explanation:

Es posible suponer que la energía térmica que gana el agua en un calórimetro equivale a la energía térmica perdida por la muestra que se prueba, en tanto que el material del calorímetro se caracteriza por ser de naturaleza aislante, es decir, que no permite las interacciones de energía entre los fluidos al interior y los alrededores del calorímetro.

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