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Vaselesa [24]
3 years ago
15

Looking back on class assignments is a good place to find clues about what to study for upcoming tests.

Engineering
1 answer:
kondaur [170]3 years ago
4 0

Answer:

True. Memorizing the assignment iteslf well help you study for a test

Explanation:

You might be interested in
the uniform bar (mass m and length l ) is leaning against a wall. the coefficient of static friction between all surfaces and th
zaharov [31]

The coefficient of static friction is the ratio of the maximum static friction force (F) between the surfaces in contact before movement commences to the normal (N) force.

<h3>What is coefficient of static friction formula?</h3>
  • The friction coefficient is the ratio of the normal force pushing two surfaces together to the frictional force preventing motion between them.
  • Typically, it is represented by the Greek letter mu (). In terms of math, is equal to F/N, where F stands for frictional force and N for normal force.
  • The ratio of the greatest static friction force (F) between the surfaces in contact before movement starts to the normal force (N) is known as the coefficient of static friction.
  • A body and a surface have static and kinetic friction coefficients of 0.75 and 0.5, respectively. The body is forced to slide with a constant acceleration that is equal to A. g4 by applying a force.

Find the attachment answer.

Learn more about coefficient of static friction refer to :

brainly.com/question/25050131

#SPJ4

8 0
1 year ago
The mean of 10 numbers is 9, then the sum (total) of these numbers will be​
qwelly [4]

Answer:

90

Explanation:

mean is basically taking the sum of all numbers and then dividing the sum with the number of all given numbers..

here, the mean is 9, total numbers are 10.. so the sum will be 9 multiplied by 10, that is 90.

5 0
3 years ago
Read 2 more answers
Consider a thermal energy reservoir at 1500 K that can supply heat at a rate of 150,000 kJ/h. Determine the exergy of this suppl
anzhelika [568]

Answer:

33.4KW

Explanation:

Firstly, we calculate the power index in a reversible heat engine which is given as;

n = 1 - T1/T2

T1 = atmospheric temperature 298k

T2 = reservoir temperature 1500k

n = 1 - 298/1500

n = 0.8013

output energy = n × energy input

0.8013×150000 = 120195KJ/hr

Power output = 120195KJ/hr/3600 = 33.4KW

8 0
4 years ago
HELP FAST WILL MARK BRAINLIEST (for a real answer)
Nata [24]

Answer:

B. 180 million joules

Explanation:

Apply the formula for heat transfer given as;

Q=m*c*Δt  where

Q = electrical energy consumed by the heater in joules

m= mass of air in the chamber in kg

c= specific heat of air in joules per kg degrees Celsius

Δt= change in temperatures in degrees Celsius

Given in the question;

m= 1200 kg

c= 1000 J/°C /kg

Δt = 180°-30°= 150° C

Substitute values in the equation to get Q as;

Q=m*c*Δt

Q= 1200 * 1000* 150

Q= 180000000 joules

Q = 180 million joules

<u>The correct answer option is B : 180 million joules.</u>

7 0
3 years ago
How has the use of computers in manufacturing changed the way products are produced? Give three examples.
yulyashka [42]
1.technology is more advanced
2.speakers and noise
3.quality and view including color format
6 0
3 years ago
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