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3 years ago

Signs of fatigue while driving include __________.

Physics

2 answers:

Lynna [10]3 years ago

5 0

Answer:

C. Sore eyes, sore muscles, and lapses in short term memory

Explanation:

Fatigue refers to an overall feeling of tiredness or a lack of energy in accomplishing tasks, e.g. driving.

Causes of fatigue while driving include;

a lack of quality sleep

driving when you would normally be sleeping (overnight)

sleep disorders such as sleep apnoea, a sleeping condition that causes tiredness throughout the day.

Symptoms of fatigue while driving

Fatigue is easy to detect, with symptoms including:

yawning

sore or heavy eyes

slower reaction times due to memory short-term lapses

daydreaming while driving

driving speed creeps up or down

impatience

impaired driving performance such as poor gear changes

stiffness and cramps

loss of motivation

svetlana [45]3 years ago

4 0

I would say C. is the answer.

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Some bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant a

Anestetic [448]

Answer:

(a) $\omega=1.41*10^3\frac{rad}{s}$

(b) $t=4.46*10^{-3}s$

Explanation:

The angular speed is a measure of the rotation speed. Thus, It is defined as the angle rotated by a unit of time:

$\omega=\frac{\theta}{t}(1)$

The arc length in a circle is given by:

$s=r\theta\\\theta=\frac{s}{r}(2)$

s is the length of an arc of the circle, so $v=\frac{s}{t}$ .

Replacing (2) in (1):

$\omega=\frac{s}{t}\frac{1}{r}\\\omega=\frac{v}{r}$

a) Now, we calculate the angular speed:

$\omega=\frac{2.21*10^{-5}\frac{m}{s}}{1.57*10^{-8}m}\\\omega=1.41*10^3\frac{rad}{s}$

b) We use (1) to calculate the time it takes to make one revolution, which means that $\theta$ is $2\pi$ .

$\omega=\frac{\theta}{t}\\t=\frac{\theta}{\omega}\\t=\frac{2\pi}{1.41*10^3\frac{rad}{s}}\\t=4.46*10^{-3}s$

8 0

3 years ago

What are they wats to find the wavelength of a transverse wave

Nesterboy [21]

The wavelength can always be determined by measuring the distance between any two corresponding points on adjacent waves. In the case of a longitudinal wave, awavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.

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3 0

4 years ago

The sun emits energy by converting hydrogen into helium. what is this process called?

AleksAgata [21]

The answer is Nuclear Fusion. The sun emits energy by converting hydrogen into helium. Nuclear fusion does two things, it converts hydrogen into helium and it also converts mass to energy.

7 0

4 years ago

Anything that has mass and occupies space is called

Jlenok [28]

Anything that has mass and occupies space is called matter.
Matter is of three types:

Solid
Liquid
Gas

Answer:

Matter

Hope you could get an idea from here.

Doubt clarification - use comment section.

8 0

3 years ago

The Golden Gate Bridge in San Francisco has a main span of length 1.28 km, one of the longest in the world. Imagine that a steel

Valentin [98]

Answer:

361.46 N

Explanation:

$\alpha$ = Coefficient of thermal expansion = $11\times 10^{-6}\ /^{\circ}C$

Y = Young's modulus for steel = $20\times 10^{10}\ Pa$

A = Area = $3.1\times 10^{-6}\ m^2$

$L_0$ = Original length = 1.28 km

$\Delta T$ = Change in temperature = $45-(-10)$

Length contraction is given by

$\Delta L=\alpha L_0\Delta T$

Also,

$\Delta L=\dfrac{L_0T}{YA}$

$\alpha L_0\Delta T=\dfrac{L_0T}{YA}\\\Rightarrow T=\alpha \Delta TYA\\\Rightarrow T=11\times 10^{-6}\times (43-(-10))\times 20\times 10^{10} \times 3.1\times 10^{-6}\\\Rightarrow T=361.46\ N$

The tension in the wire is 361.46 N

4 0

3 years ago