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Nikolay [14]
3 years ago
14

Is one way to prevent injuries when jump-starting a car

Engineering
1 answer:
zimovet [89]3 years ago
4 0

Answer:

Turn off the ignition, all lights and accessories in both vehicles to minimize sparks when hooking up jumper cables. and you can remove any terminal covers and corrosion

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The use of seatbelts in a car has significantly reduced the number of crash fatalities. Which statement best explains how societ
satela [25.4K]

as the public need for preventing injuries and deaths from car crashes became known,laws were enacted to mandate the inclusion of seatbelts in almost all passengers vehicles

8 0
3 years ago
Air at 40°C flow steadily through the pipe shown in Fig. 1 below. If P1 = 40 kPa (gage), P2 = 10 kPa (gage), D = 3d, Patm ≅ 100
Dafna1 [17]

Based on the average velocity at section 2, and the absolute pressures at both sectors, the average speed at section 1 is 2.226 m/s.

<h3>What is the average speed at section 1?</h3>

Density at P₁:

= (40 + 100) / (0.287 x  (40 + 273))

= 1.5585 kg/m³

Density at P₂:
= (10 + 100) / (0.287 x  (40 + 273))

= 1.2245 kg/m³

The average speed at section 1 is:

= (Density at P₂ x d² x 25.5) / (Density at P₁ x 9d²)

= 2.226 m/s

Find out more on average velocity at brainly.com/question/17444459.

#SPJ1

8 0
3 years ago
What is the difference between available and unavailable energy?
Anon25 [30]

Answer:

The heat absorbed portion that is transformed into work is therefore helpful and accessible for our use, hence it is termed as available energy. But the energy or heat which is of no use is termed as unavailable energy.

Explanation:

A engine requires heat from the reservoir and transforms portion of it into function. The extra heat is expelled (generally atmosphere) to  cold reservoir. The refused heat can't be equal to zero, as per the 2nd law of thermodynamics. The heat absorbed portion that is transformed into work is therefore helpful and accessible for our use, hence it is termed as available energy. But the energy or heat which is of no use is termed as unavailable energy.

5 0
4 years ago
Please help meh!!! I appreciate it!
Rasek [7]

Answer:

★ The answers ARE B,A,D,D,A !

Explanation:

Hope you have a great day

7 0
3 years ago
Write a function M-file that takes as input two matrices A and B, and as output produces the product by columns of the two matri
docker41 [41]

Answer:

Here is the code in Matlab for the function.

I have also attached the m file for function as well as the test run of the code  here and screenshot of the result.

Code:

function [ C ] = columnproduct( A, B )

% get the dimesnions of A

sizeA = size(A);

sizeB = size(B);

% check if columns of A are same as rows of B

if(sizeA(2) ~= sizeB(1))

   error('matrix dimensions do not match')

end

% initialize resultant matrix

C = [];

for i = 1:sizeB(2)

   % concatenating product of matrix A with each column of B

   C = [C A*B(:,i)];

end

end

7 0
3 years ago
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