Math Homework

Ask Math Questions. Get Help With Your Math Homework

Ask an Expert,
Get an Answer ASAP!

A 7.5 kg block is placed on a table. Its bottom surface area…

Customer Question
A 7.5 kg block is...
A 7.5 kg block is placed on a table. Its bottom surface area is 0.6m^2. How much pressure does the block exert on the tabletop?
Submitted: 11 months ago.Category: Math Homework
Show More
Show Less
Ask Your Own Math Homework Question
Answered in 9 minutes by:
9/19/2017
Math Tutor or Teacher: Ryan, Engineer replied 11 months ago
Ryan
Ryan, Engineer
Category: Math Homework
Satisfied Customers: 9,184
Experience: B.S. in Civil Engineering
Verified
Hi,Thank you for using the site. I'll be happy to help you with this problem.The force exerted on the table is mg, where m is the mass of the block (7.5 kg), and g is the acceleration due to gravity (9.81 m/s^2).The pressure exerted is equal to the force, divided by the area:P = mg/A = (7.5 kg * 9.81 m/s^2) / 0.6 m^2 = 122.625 N/m^2Please feel free to ask if you have any questions about this solution.Thanks,Ryan
Ask Your Own Math Homework Question
Math Tutor or Teacher: Ryan, Engineer replied 11 months ago

Hi again,

I wasn't able to see your comment about having obtained an answer of 122.5 when I was posting the initial answer. It didn't show up on my phone.

I suspect that you used 9.8 for g, instead of the 9.81 value that I used. This is common, and perfectly acceptable. Your answer is just as correct as mine.

Thanks again,

Ryan

Ask Your Own Math Homework Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a math tutor or teacherLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Ryan Your Own Question
Ryan
Ryan
Ryan, Engineer
Category: Math Homework
Satisfied Customers: 9,184
9,184 Satisfied Customers
Experience: B.S. in Civil Engineering

Ryan is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Mr. Gregory White

Mr. Gregory White

Master's Degree

92 satisfied customers

M.A., M.S. Education / Educational Administration

JACUSTOMER-yrynbdjl-

JACUSTOMER-yrynbdjl-

Master's Degree

49 satisfied customers

I have taught college Mathematics for the past 10 years.

SusanAthena

SusanAthena

Master's Degree

41 satisfied customers

Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.

Dr Arthur Rubin

Dr Arthur Rubin

Doctoral Degree

38 satisfied customers

Ph.D. in Mathematics, California Institute of Technology

mhasan420

mhasan420

Master's Degree

29 satisfied customers

BA Maths, Oxford

Don

Don

Master's Degree

17 satisfied customers

M.S. Astronautical Engineering. Math/Science/Comp Tutor

judybailey61

judybailey61

Bachelor's Degree

17 satisfied customers

20 years teaching mathematics

< Previous | Next >

Related Math Homework Questions
A): A motorcar of mass 1700 Kg accelerates from 150 km/hr to
A): A motorcar of mass 1700 Kg accelerates from 150 km/hr to 240 km/hr in 2.5 seconds. * Find the average acceleration and the force needed to create this acceleration… read more
Tutoring InAnInstant
Tutoring InAnInstant
CEO and Head Tutor
Project Management
2 satisfied customers
Was wondering how this works. I went to submit a question,
Hello, was wondering how this works. I went to submit a question, it asked for payment but no where to send the answer to. Hw di I get the answers once I have paid? Thank you … read more
Aleksander Zujev
Aleksander Zujev
PhD
2 satisfied customers
1) What is the minimum gauge pressure needed in the water
1) What is the minimum gauge pressure needed in the water pipe leading to a building if water is to come out of a faucet on the 12th floor, 41 m. above the pipe? 2) Estimate the pressure exerted on th… read more
Ryan
Ryan
Engineer
Bachelor's Degree
9,184 satisfied customers
1a.Explain briefly how a correctly installed and operated ballCustomer
1a.Explain briefly how a correctly installed and operated ball Customer Question 1a.Explain briefly how a correctly installed and operated ball bearing assembly, using a clean and appropriate lubrican… read more
Ashok Kumar
Ashok Kumar
Master\u0027s Degree
291 satisfied customers
1a.Explain briefly how a correctly installed and operated ball
1a.Explain briefly how a correctly installed and operated ball bearing assembly, using a clean and appropriate lubricant, may still fail when in use due to metal fatigue. Briefly outline three other f… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
Master's Degree
92 satisfied customers
I would much appriciate if you could solve the following
Hello I would much appriciate if you could solve the following Thermodynamics questions please , the answer is needed by tomorrow morning at 7.30am: Specific Heat capacity, C: C water = 4186 J/ kg/°C … read more
Martin
Martin
Master\u0027s Degree
111 satisfied customers
1) A 8.00m*12.0m swimming pool slopes linearly from a 1.00m
1) A 8.00m*12.0m swimming pool slopes linearly from a 1.00m depth at one end to a 3.50m depth at the other. What is the mass of water in the pool in kg? 2)A 0.500m -diameter vat of liquid is 2.70m dee… read more
Ryan
Ryan
Engineer
Bachelor's Degree
9,184 satisfied customers
"For Steve": Can you kindly help me with a couple more? Im
"For Steve": Can you kindly help me with a couple more? I'm not very good at these and I'm having a very difficult time. I'm very grateful for your assistance. 1. An apple is resting on a table. Draw … read more
Ashok Kumar
Ashok Kumar
Master\u0027s Degree
291 satisfied customers
2. A block of mass 3 kg slides along a horizontal surface while
2. A block of mass 3 kg slides along a horizontal surface while a 20-N force is applied to it at an angle of 25°, as shown. If needed, use g = 10 m/s2. For a coefficient of kinetic friction of 0.3 bet… read more
Fermat
Fermat
Master's Degree
17 satisfied customers
a 2.8 kg rectangular air mattress is 2 m long, .5 m wide, and
a 2.8 kg rectangular air mattress is 2 m long, .5 m wide, and .1 m thick. What mass can it support in water before sinking. Please EXPLAIN HOW you get the answer to this, not just the answer or just t… read more
Ryan
Ryan
Engineer
Bachelor's Degree
9,184 satisfied customers
Use G 6.67 x 10^-11 N m^2/kg^2 and the equation given in
Use G = 6.67 x 10^-11 N•m^2/kg^2 and the equation given in section 7.5 of the text, F divided by m1m2/d^2. 1. Two 3 kg physical science textbooks on a book shelf are separated by 0.15 m. What is the f… read more
Osbert12
Osbert12
Master\u0027s Degree
412 satisfied customers
1. The table below gives the depth of water across a river
1. The table below gives the depth of water across a river measured at one metre intervals between banks. Distance (m) 0 1 2 3 4 Water depth (m) 0 0.5 1.6 0.9 0 Use the Trapezium rule to estimate the … read more
Ryan
Ryan
Engineer
Bachelor's Degree
9,184 satisfied customers
AutoWrecks, Inc. sells auto insurance. AutoWrecks keeps close
AutoWrecks, Inc. sells auto insurance. AutoWrecks keeps close tabs on its customers' driving records, updating its rates according to the trends indicated by these records. AutoWrecks' records indicat… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
41 satisfied customers
An object floats on water with 78% of its volume below the
An object floats on water with 78% of its volume below the surface. The same object when placed in another liquid floats on that liquid with 70% of its volume below the surface. Determine the density … read more
Ashok Kumar
Ashok Kumar
Master\u0027s Degree
291 satisfied customers
Please show your work so I can learn the formulas. 3)
Please show your work so I can learn the formulas. 3) Fill in the blank. Golden triangles are __ triangles. A) isosceles B) right C) 30°-60°-90° D) equilateral 4) Describe the figure or polygon produc… read more
Scott
Scott
MIT Graduate
Master\u0027s Degree
213 satisfied customers
Q1 3 kg ball is dropped from the roof of a building 176.4
Q1 3 kg ball is dropped from the roof of a building 176.4 m high. While the ball is falling to earth a horizontal wind exerts a constant force of 12 N on the ball. What is the speed of the ball when i… read more
calcProf
calcProf
Doctoral Degree
287 satisfied customers
Block A (m 2.10 kg), originally at rest, is pushed with a
Block A (m = 2.10 kg), originally at rest, is pushed with a net horizontal force of 8.76 N for 5.43 m as it slides across a horizontal, frictionless surface. Then the force is removed and the Block A … read more
Ben Brown
Ben Brown
Bachelor's Degree
512 satisfied customers
1. An asteroid revolves around the sun with a mean ...
1. An asteroid revolves around the sun with a mean (average) orbital radius twice that of Earth's. Predict the period of the asteroid in Earth years. ____ yr &n bsp; 2. Tom has a mass of 75.0 kg and S… read more
Scott
Scott
MIT Graduate
Master\u0027s Degree
213 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x