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Stells [14]
3 years ago
6

Remy noticed that after oiling his skateboard wheels, it was easier to reach the speeds he needed to perform tricks. How did the

oil help? A. The oil reduced friction between the moving parts of the skateboard. B. The oil increased friction between the moving parts of the skateboard. C. The oil reduced friction between the skateboard wheels and the ground. D. The oil increased friction between the skateboard wheels and the ground.
Engineering
1 answer:
Sidana [21]3 years ago
4 0

Answer:

The oil reduced friction between the moving parts of the skateboard. ( A )

Explanation:

The oil reduced Friction between the moving parts of the skateboard and this is because the reduction in friction between moving parts causes an increase in speed.

Remy will oil the moving parts that connects the wheels of the skateboard to the Board, because this is where the most friction is found. the friction between the wheels and the ground cannot be affected by oiling the wheels

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Can I put a fork in electric socket?
erastova [34]

Answer:

don't put fork in a electric socket

4 0
3 years ago
Read 2 more answers
A strain gauge pressure sensor has the following specification. Will it be suitable for the measurement of pressure of the order
brilliants [131]

Answer: the measurement of pressure of the order of 100 KPa to an accuracy of +- 5Kpa is POSSIBLE with the sensor

Explanation:

Given that;

specifications include the range 70 kPa to 1 MPa which includes 100 kPa.

specification include non-linearity and hysteresis error of 0.5%

first we find the non-linear error

= 1 MPa * 0.5%

= 1 MPa * 0.005

= 0.005 MPa = 5 KPa

therefore, it includes the non-linearity error of +- 5 KPa.

the specification include the temperature range -54 to 120 degree Celsius which includes 20 degree Celsius

THEREFORE, the measurement of pressure of the order of 100 KPa to an accuracy of +- 5Kpa is POSSIBLE with the sensor

4 0
3 years ago
Micrometers with a vernier graduation are capable of taking readings to the nearest 0.0001 in. a)- True b)- false
Oduvanchick [21]

Answer:

The micrometer with vernier graduation can measure reading to the nearest 0.0001 inches.  So, the statement is true.

Explanation:

Micrometer is the measuring device that used to measure length with more accuracy. Micrometer can measure the length in metric as well as in English unit. Micrometer is generally used to measure diameter and length of the mechanical component.

Working:

Micrometer is a screwed device. It contains spindle, anvil and thimble. Object is placed between spindle and anvil. Thimble is rotated that rotates the spindle till it touches the component completely. Two types of scales are used to measure the reading of micrometer, one is sleeve scale and other is thimble scale. Spindle moves toward component by 0.5 mm in or 0.025 in on every one rotation of spindle. There are three types of micrometer

Least count of micrometer:

Minimum measurement of any measuring device is the least count of that device. So, the least count for normal micrometer is 0.01 mm or 0.001 inches.

The micrometer is called vernier micrometer if the micrometer is provided with the vernier scale. The least count of vernier micrometer scale is 0.0001 inches.

Hence the micrometer with vernier graduation can measure reading to the nearest 0.0001 inches.

Thu, the statement is true.

6 0
3 years ago
Which tool is used to measure movement automotive
Schach [20]

Answer:

Speedometer

It shows our speed, or how fast we're moving.

3 0
3 years ago
s) Use Cramer’s rule to solve the system below, and state the condition at which solution exists. ax+by = 1 cx+dy =−1
Zanzabum

(a) The solution to the system of equation is, x = (d + b)/(ad - cb) and y = (-a - c)/(ad - cb).

(b) The condition at which the solution exists is, ad - cb ≠ 0.

<h3>Solving the system of equation with Cramer's rule</h3>

ax + by = 1

cx + dy = -1

D = [a   b]

      [c    d]

D = ad - cb

Dx = [1   b]

       [-1   d]

Dx = d + b

Dy = [a   1]

       [c  - 1]

Dy = -a - c

x = Dx/D

x = (d + b)/(ad - cb)

y = Dy/D

y = (-a - c)/(ad - cb)

Cramer's rule applies to the case where the coefficient determinant is nonzero.

Thus, D ≠ 0 (ad - cb ≠ 0).

Learn more about Cramer's rule here: brainly.com/question/10445102

#SPJ1

4 0
2 years ago
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