Physics High School

What's the answer to this question?​

What's The Answer To This Question?

Answers

Answer 1

Answer:

The barometer is supporting 75 cm of Hg due to atmospheric pressure.

Since the manometer is open to air pressure, the gas pressure is supporting the air pressure plus the 30 cm of Hg.

So the "absolute" gas pressure is 75 + 30 = 105 cm of Hg.

Related Questions

A positively charged atom has

Answers

It has a positive charge

Answer:

Lost electrons

Explanation:

For a atom to become positively charged it needs to have more protons than electrons

What indicates that an atom
has no overall charge?

Answers

When the amount of protons and electrons is the same within the atom. Hope this is the answer you’re looking for :)


More work was done. Which statement best describes the cause?
a
There was more force applied; therefore, there was less movement.
b
There was less force applied; therefore, there was more movement.
Oc
There was less force applied; therefore, there was less movement.
Od
There was more force applied; therefore, there was more movement.

Answers

Answer: I think the answer would be D

Explanation:

The more force you apply the more movement you will get.

The gravitational acceleration on Earth is 9.8 m/s2. What is the weight of a car on Earth (to the nearest whole number) if it has a mass of 1360 kg? 14 N 139 N 1333 N 13,328 N

Answers

Weight = (mass) x (gravitational acceleration where the mass is)

Weight = (1360 kg) x (9.8 m/s²)

Weight = 13,328  kg-m/s²

That's 13,328 Newtons

Given:-

Mass (m) of the car = 1360 kgAcceleration due to gravity (g) = 9.8 m/s²

To Find: Weight (W).

We know,

W = mg

where,

W = Weight,m = Mass &g = Acceleration due to gravity.

Thus,

W = (1360 kg)(9.8 m/s²)

→ W = 13,328 N (D)

The modern periodic table of elements contains
_______ main groups.

Answers

it contains 18 main groups

Answer:

The modern periodic table of elements contains

Eighteen main groups.

7. The technology they had in the 70's was similar to a modern day _______________ that could fit in our pocket. (space science; The Farthest: Voyager in Space Viewing Guide)

Answers

Answer:

Key Fob.

Explanation:

On the 5th of September, 1977, the National Aeronautics and Space Administration (NASA) launched a spacecraft known as "Voyager 1" to study and explore the outer planets of the solar system.

Additionally, two voyager spacecraft were built for the above mentioned study and exploration exercise; Voyager 1 and Voyager 2. Voyager 2 was actually the first spacecraft while Voyager 1 was launched sixteen (16) days after and was faster.

According to Rich Terrile, the technology they had in the 70's was similar to a modern day Key Fob that could fit in our pocket because the processing power of the computer chip found in a Key Fob was comparable to the much larger voyager probe (Voyager 1 and Voyager 2) of the 70's, that was tagged an artificial brain.

This ultimately implies that, the computer chip found in a car Key Fob is more powerful and sophisticated than the Voyager probe, even though the Key Fob is smaller but having the same amount of memory.

1) Describe how the atoms of a solid differ from the atoms of a liquid.

Answers

Answer:

liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

The atoms of solids and liquids are different from each other in many ways as discussed below.

We have a solid and a liquid.

We have to describe how the atoms of a solid differ from the atoms of a liquid.

What is Atom?

An Atom smallest unit into which matter can be divided without the release of electrically charged particles.

According to the question, the following differences exists between the atoms of solids and liquids -

In solids the atoms are tightly packed while in liquid they are loosely packed.In solids the density of atoms within a specific volume is very high while in liquid it can be either high or low.In solids, atoms are not free to move and they can only oscillate about their mean position while in liquid the atoms are free to move.

Hence, it can be seen that the atoms of solids and liquids are quite different from each other.

To learn more about the Structure of matter, visit the link below-

https://brainly.com/question/1675047

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write any five uses of uv rays​

Answers

-tanning
-disinfection
-indoor gardening
-air cleaning
-curing inks and resins

hey can anyone help me out in dis pls

Answers

Answer:

All of the above

Explanation:

Solids have a fixed shape and volume.

Even though the molecules in a solid are vibrating, they can't travel from one part of the solid to the other.

I hope this helps! :)

Which of the following are states of matter?
A. Gas
B. Compound
€. Mixture
D. Solid
E. Liquid

Answers

Answer:

Solid , liquid and gas

Explanation:

However, mixture and compound are other things.

How can the force of friction between two surfaces be reduced?
a. By changing rolling friction to sliding friction.
b. By making smooth surfaces rougher.
c. By separating surfaces with a lubricant.
d By increasing the force between the surfaces.

Answers

B if you make it rougher they won’t be able to have frictions
C because it will reduce the friction and help the object work together

An object moves along the x-axis. The graph shows its position x as a function of time t. Find the average velocity of the object from points B to C. −8.3 m/s −4.2 m/s 0 m/s −0.12 m/s

Answers

Answer:

-8.3m/s

Explanation:

its correct

Answer: its 0.

Explanation: Gradpoint

What is the velocity of the object moving from 3 - 7 seconds?
O m/s
-6 m/s
6 m/s

Answers

6 m/s. Learn how to read graphs

How does distance affect gravity???

Answers

Answer:no because distance is weaker than gravity

Explanation:the strenght of the gravita force between the two objects depend on two facto mass and distance the force of gravity the masses  exert on each other increases the force of gravity decreases if the distance is doubled the force of gravity is one fourth as strong as before

Yes it does if the force between 2 bodies is F at the distance r, if we move one of them at the distance 2r, than the force becomes f/4


Robin jogs with an average speed of 5.5 m/s for 3.3s.
What was her distance travelled in meters?

Answers

Answer:

18.15m

Explanation:

Speed * Time = Distance

5.5 * 3.3 = 18.15m

The distance traveled by Robin is equal to 18.15 m with an average speed of 5.5 m/s for 3.3s.

What is the average speed?

The average speed can be explained as the total distance covered by the object in a definite time. The average speed can be considered a scalar quantity as it exhibits magnitude and no direction.

The average speed of a physical system can be determined from the ratio of the total distance traveled by the system to the time taken to cover that distance.

The average speed equation of a physical system can be written as follows:

Average speed =  Total distance/total time taken

Given, the average speed of the Roin, = 5.5 m/s

The time is taken by Robin for jogging = 3.3 s

The average speed of the Robin can be determined as:

Average spped = Distance/ time

5.5 = Distance/3.3

Distance traveled by Robin = 5.5 × 3.3 = 18.15 m

Learn more about the average speed, here:

brainly.com/question/12322912

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N
How long would it take a runner to travel 4 miles if they ran at a pace of 2.3 miles/hour?
(10 Points)
O 9.2 hours
O 0.575 hours
O 2.35 hours
O 1.739 hours

Answers

Answer:

9.2

Explanation:

just multiply 4 miles times 2.3 then you get your answer

9.2. Hours or 1.739 hours

Which careers typically require post-secondary education other than vocational school? Check all that apply. Boiler Operation Construction Management Architecture Repair Work Civil Drafting Carpentering

Answers

Answer: Construction management, Architecture, Civil Drafting.

Explanation: hope this helps :)

Construction Management, Architecture and Civil Drafting are careers typically require post-secondary education other than vocational school. So, the correct options are B, C and E.

What is Career?

Career is defined as a person's metaphorical "journey" through learning, work and other aspects of life where there are many ways to define career and the term is used in different ways.

A career is defined as the variety of experiences that we have had throughout our lives. As we gain more experience in the world of work and life, we build careers. We take into account career paths education, training and paid or unpaid work. Construction Management, Architecture and Civil Drafting are careers typically require post-secondary education other than vocational school.

Therefore, the correct options are B, C and E.

Learn more about Career, here:

https://brainly.com/question/30040900

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Starting from rest, a truck accelerated at a rate of 2 m/s to the right for 25 seconds. How far will the truck travel during this time period

Answers

Answer:

S= ?

V=2m/sec

t=25s

S=V*t

S=2*25

S=50m

which expression correctly describes energy using SI units

Answers

Answer:

Joule

Explanation:

energy, work, quantity of heat

m2·kg·s-2

A monorail starts from rest and accelerates at a rate of 2.2m/s2 for 10s.Then it runs at a constant speed for 74s and then slows down at a rate of 1.5m/s2

Answers

Answer:

d = 4217 m

Explanation:

Case 1.

Initial velocity, u = 0

Acceleration, a = 2.2 m/s²

Let d₁ is the distance in case 1. Using second equation of motion as follows :

[tex]d_1=ut+\dfrac{1}{2}a_1t_1^2\\\\\text{Here, u =0}\\\\d_1=\dfrac{1}{2}\times 2.2\times 10^2\\\\d_1=110\ m[/tex]

Let d₂ in the distance in case 2. Using second equation of motion as follows :

[tex]d_2=ut+\dfrac{1}{2}a_2t_2^2\\\\\text{Here, u =0}\\\\d_2=\dfrac{1}{2}\times 1.5\times 74^2\\\\d_2=4107\ m[/tex]

Total distance,

D = d₁ + d₂

D = 110 + 4107

D = 4217 m

Hence, the total distance covered is 4217 m.

what is 6,000 in scientific notation

Answers

6,000 in scientific notation is 6 x 10^3.

6 x 10^3 = 6,000

Hope this helps ! <3

Why us an element considered a pure substance

Answers

Explanation:

Hey there!!

An elements is called a pure substance because it is composed of only one kina of atoms in a fix proportion.

Hope it helps...

Answer:

Elements are pure substances because elements are always made up of same kind of particles.

Example:- pure Iron rod (iron is an element)is made up of many similar Iron atoms.

A drunk college student decides to try to do a perfect swan dive from his apartment window into the pool below. The edge of the pool is 5 meters from the base of the building and his window is on the 3rd floor, which is 8 meters from the ground. If he jumps out the window horizontally at a speed of 4 m/s, does he make it into the water or..

Answers

Answer:

He barely makes it but hit his leg on the pool edge.

Explanation:

Using kinematic formula: Δx=[tex]v_{0}t+(1/2)at^2[/tex]

We can plug in delta x, v zero, and acceleration.

delta x = 8 meters, v0 = 0. a = 9.8

8=(1/2)9.8*t^2

Around 1.278 seconds of airtime.

4 * 1.278 = 5.112 meters horizontally assuming no air resistance

That was close!

CAN YOU THE 3 QUESTIONS ILL PUT U AS BRAINLEST!!!!

Answers

Answer: 1. 5 1/6 m/s 2. Traveling Left 3. 0.45

Explanation:

Please mark Brainliest!!!

After you let go of a bowling ball, is there a force pushing it so that it keeps moving
forward? Explain.

Answers

Explanation:

No, the ball keeps moving forward due its momentum.

A net force causes an object to accelerate, which means it speeds up, slows down, or changes direction.  A bowling ball does not speed up after you let go, so there is no forward force.

"Suppose an elephant (Tiny) was
pacing back and forth at the zoo.
She first goes 8 meters to the
left, 6 meters to the right, and 2
meters to the left.
What is the total distance Tiny
has traveled?
I
What is Tiny's displacement?

Answers

Answer :

Distance traveled by Tiny : 8m + 6m + 2m = 16 meters
Displacement of Tiny : 8m (left) - 6m (right) + 2m (left) = 4 meters to the left

Explanation :

Distance : sum of all values of movement given in the question = 8 meters (left) + 6 meters (right) + 2 meters (left)

Displacement : Shortest distance covered from the starting point = 8 meters (left) + 2 meters (left) - 6 meters

Sry I could not explain more hope you found it useful

WHO IS GOOD AT PHYSICAL SCIENCE PLS COME HERE AND HELP ME OUT!!!!

Answers

me i’m very good!! just lmk a question

The electric motor of a model train accelerates the train from rest to 0.620 m/s in 21ms. The total mass of the train is 825 g. find the average power delivered to the train during its acceleration.

Answers

Explanation:

Average power = change in energy / change in time

P = ΔE / Δt

P = (½ mv²) / t

P = (½ (0.825 kg) (0.620 m/s)²) / (0.021 s)

P = 7.55 Watts

Write about natural indicators. ​

Answers

Natural Indicator is a type of indicator that can be found naturally and can determine whether the substance is an acidic substance or a basic substance. Some examples of natural indicators are red cabbage, turmeric, grape juice, turnip skin, curry powder, cherries, beetroots, onion, tomato, and etc.

Hope this answers ur questions

Which best describes internet wikis as a source of scientific information

Answers

Answer:

They are written or edited by anyone

Explanation:

Other Questions
Positive thinking is basically wishful thinking.Please select the best answer from the choices providedTF Journal #1: It has been a week since your identity was removed. What do you miss most about your old life and self? How is your new life different? Please match the word to the correct definition. PLZ HELP ME :(1. a close to perfect place to live2. Queen Elizabeth sent him on three expeditions to the New World.3. the farthest point of the earth that a person can see. On the ocean, it is the line where the sea and the sky seem to meet.4. a fleet of Spanish ships5. The first Englishman to receive a royal charter for land in America.6. wild, primitive, harsh, cruel7. consists of a king or queen and his or her advisors and servants.8. owner9. The first three permanent European colonies in the lands that would become the United States and Canada.10. very dangerous11. She sponsored the Exploration of the New World.12. When it appears before a mans name it tells you he was knighted by an English king or queen.A. Elizabeth IB. Sir Humphrey GilbertC. UtopiaD. Sir Walter RaleighE. Royal CourtF. BarbarousG. ProprietorH. SirI. St Augustine, Quebec, Santa FeJ. TreacherousK. HorizonL. Armada will give brainliest!! please help!!!*Note: The sample sentences in parentheses are just a guide to help you form your sentences. You must come up with your own original answers keeping academic integrity intact. What level (preschool, primary, secondary, etc.) of school do you go to? Make sure you use the yo form of the verb ir. (e.g., I go to _____ school.) i go to secondary On the Friday before winter break, Mrs. Lyon was out sick with a cold. So, Mr. Ridley substituted for the day. Most of the students in Mrs. Lyon's class were normally well-behaved. However, with the anticipation of the winter break, they became a little wild. While Mr. Ridley was writing on the dry erase board, Margo threw a paper airplane at his back. The class giggled as Mr. Ridley spun around to see who had thrown the paper airplane. "Class! Throwing paper airplanes at a teacher is unacceptable and disrespectful. Who did that?" Mr. Ridley asked. The students kept their mouths closed and sat up straight in their chairs. No one volunteered any information. "Fine then, you will all stay in from recess until someone tells me who threw the airplane," Mr. Ridley said. Mercy wiggled in her seat. She wanted to tell the teacher who threw the airplane, but she was afraid that the other students would call her a tattle tale. Alan, the class clown, was thrilled that someone besides him had done something foolish. He would never tell. He would expect the same loyalty from his classmates. Margo felt nervous. She wanted to confess and apologize to Mr. Ridley, but she was afraid that she would receive a harsh punishment. She wondered how long her classmates would protect her. Jervis sat and drummed his fingers. He didn't see who threw the paper airplane, but he guessed that it had been Alan. He was tempted to raise his hand and tell the teacher that Alan was the responsible party, but he wasn't completely confident. He really wished that someone would tell who did it. It wasn't fair that the whole class was being punished for one person's mistake. Rosania was happy that the class wasn't going to recess. She had terrible allergies and wanted to stay inside. She hoped that no one would say a word until recess time was over. Mr. Ridley walked around the classroom looking at each student's face as he went by. He thought he detected sweat and shaking when he walked by Fred. He wondered if Fred was the culprit. However, Fred just needed to use the restroom but was afraid to ask. "Fred, you seem a bit anxious. What is it you want to tell me?" Mr. Ridley asked. "Nothing, sir. I-I need to use the restroom," Fred stammered. "No one is leaving this room until I find out who threw that airplane at me," Mr. Ridley said. Margo could not allow her classmates to suffer any longer. "It was me! I threw it! I'm sorry, Mr. Ridley," Margo said as she burst into tears. Mr. Ridley hated to see children cry. He rushed over to Margo and gently patted her back. "I forgive you. Don't cry," Mr. Ridley said. "I was just being silly. I didn't mean to disrespect you," Margo sniffled. "We will forget all about it. Let's enjoy the rest of our day together. Because you were honest, we will all play games for the rest of the day," Mr. Ridley announced. How do the points of view of Margo and Alan differ?A)Margo is proud, but Alan is upsetB)Margo is happy, but Alan is worried C) Margo is eager, but Alan is hesitant D) Margo is regretful, but Alan is pleased HELP ME PLZ Which cultural area includes the city of Alexandria? Sportsmans ParadiseCrossroadsCajun CountryPlantation Country Which of the following best describes Cyrus the Great? Select the three correct answers. A. He allowed the people he conquered to keep their customs and religions. B. He captured Babylon and freed the Jewish people to return to Judah. C. He defeated Cambyses II in battle and conquered the Persian empire. D. He used trenches to drain a river so his troops could attack a city. E. He was defeated in battle by Croesus, the king of Lydia, and fled from Ionia. The chemical symbol for silver oxide, an ionic compound used to make button batteries, is made of silver andoxygen and has a chemical formula of Ag20.Answer 2 and 1 Which question would a demographer most likely ask? ASAAPPPP PLSSSSWhich ethnic groups live in this community?Which officials sit on the citys school board?What is the price of gasoline and oil in this area?Which landforms and waterways make up this region? How did the proprietor system benefit both the ruler and the proprietor? Simplify. 3x 8(x + 4) which statement describes the cell cycle what are the common multiples of 8 and 12? why dont many people stay at the bed and breakfast I WILL GIVE BRAINLIEST!!!!! Consider the scenario below. This morning Haidar noticed that her dog, Aldi, seemed unwell. She took him to the vet, where he was diagnosed with an ear infection. The veterinarian prescribed an antibiotic called amoxicillin to help Aldi feel better. Haidar will give Aldi 150 mg of the antibiotic once each day for 10 days. Each time Haidar gives Aldi his next dose of medication, 40% of the previous dose remains in his bloodstream. Use what you know about recursive sequences and iteration to explore the mathematics related to this scenario. 1. Determine the amount of medication that is in Aldis bloodstream after Haidar gives him each of the 1st, 2nd, 3rd, and 4th doses of amoxicillin. Show your work. What does Jonas notice about the apple? (The Giver) How can cells increase their surface area? PLEASE HELP! Its kinda easy its just confusing for me -5x + 4 = 2x + 16How do I solve this How does a company's use of social media reflect audience-centered communication?