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Irina-Kira [14]
3 years ago
14

When a projecting load extends to the rear four or more feet beyond the bed or body of a vehicle in the daytime, the extreme rea

r and sides of the load must be marked by four?
Physics
2 answers:
ella [17]3 years ago
7 0
Four red flags

The load being carried poses a hazard to vehicles in the proximity of the load-carrying vehicle, and so it is mandatory by law for the vehicle to make the load more visible. At night time, the load is marked using red lights, as flags would not be visible then.
DedPeter [7]3 years ago
4 0

Four red flags as markers.

<h2>Further Explanation </h2>

The cargo that is carried poses a danger to the surrounding vehicles. vehicles carrying more loads are required to use this mark because it is an obligation that the loaded vehicles are more visible. At night, the load is marked using a red light, because the flag will not be seen at that time. It is also mandatory for the driver to carry/install a safety triangle.

A safety triangle is a triangle-shaped sign with a red side that is used to secure a place of accident or blow. Traffic regulations in various countries require that all vehicles have safety triangles and use them when vehicles must be stopped in dangerous places.

Safety triangles sold today are usually made of plastic and can be folded. If the vehicle is forced to be stopped because of an accident, strike, broken tire, etc., the safety triangle is placed in the direction of traffic, usually behind the car. The red color as intended, must be able to reflect light when hit by light, and finally, its position must cross the road with a pointed angle facing up, and the red color facing the direction of traffic. The security triangle must be colored,

The red color as intended, must be able to reflect light when struck by the light beam, and finally, its position must cross the road with a pointed angle facing up, and the red color facing the direction of traffic.

Learn more

driving safety brainly.com/question/4306793

Details

Grade:  High School

Subject:  Physics

keywords:  driving safety

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Why do things cling in magnets
Ber [7]

A magnet is any object that has a magnetic field. It attracts ferrous objects like pieces of iron, steel, nickel and cobalt. In the early days, the Greeks observed that the naturally occurring 'lodestone' attracted iron pieces. From that day onwards began the journey into the discovery of magnets.

These days magnets are made artificially in various shapes and sizes depending on their use. One of the most common magnets - the bar magnet - is a long, rectangular bar of uniform cross-section that attracts pieces of ferrous objects. The magnetic compass needle is also commonly used. The compass needle is a tiny magnet which is free to move horizontally on a pivot. One end of the compass needle points in the North direction and the other end points in the South direction.

The end of a freely pivoted magnet will always point in the North-South direction. The end that points in the North is called the North Pole of the magnet and the end that points South is called the South Pole of the magnet. It has been proven by experiments that like magnetic poles repel each other whereas unlike poles attract each other.

3 0
4 years ago
What frequency is received by the ambulance after reflecting from a wall near the person watching the oncoming ambulance (as in
ElenaW [278]

Answer:

f=896Hz

Explanation:

Given data

Vs(speed of the ambulance)={(104 km/h)*(1000m*(1 h/3600)}=28.9m/s

f(frequency of the ambulance siren)=821 Hz

v(speed of sound)=345 m/s

Vo(speed of the observer)=0 m/s

To find

f(The ambulance is approaching the person)

Solution

From Doppler effect

f^{i}=(\frac{v+v_{o} }{v-v_{s} })f

As the ambulance approaches the we assign a positive sign for speed "vs" of the ambulance

So

f^{i}=(\frac{v+0}{v-(+v_{s}) } )f\\f^{i}=(\frac{v}{v-v_{s} } )f

Substitute the values from given data

f^{i}=(\frac{345m/s}{345m/s-28.9m/s} )821Hz\\f^{i}=896Hz

5 0
3 years ago
Explain why the speed of light is lower than 3.0 × 108 m/s as it goes through different media.
alexandr1967 [171]

Answer:

air or vacuum is the least refractive index medium of most rare medium

all other medium has more value of refractive index and hence the speed will be less than the speed of the air

Explanation:

As we know that speed of light in any medium and speed of light in air is related to each other by the equation

v = \frac{c}{\mu}

here we know that

c = 3 \times 10^8 m/s

[tex]\mu [tex] = refractive index of the medium

so we know that air or vacuum is the least refractive index medium of most rare medium

all other medium has more value of refractive index and hence the speed will be less than the speed of the air

4 0
3 years ago
Read 2 more answers
In Part C, how would the effects differ if you connected the galvanometer to the primary coil and the battery/switch to the seco
Katen [24]

N₂ / N₁ = 13.3

A transformer is a device that changes the voltage in the primary, causing a voltage to be induced in the secondary. The expression for this voltage ratio is

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They state that the primary voltage in this instance is 9.0 V and the secondary voltage is 120 V.

ΔV₂ /ΔV₁ = N₂ / N₁

N₂ / N₁ = 120/9

N₂ / N₁ = 13.3

Learn more about  voltage here brainly.com/question/16774947

#SPJ4.

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Answer will be c for this one!

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