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WITCHER [35]
3 years ago
13

Many services are provided by your local municipality. Which of the following workers is employed by the federal government?

Physics
2 answers:
ss7ja [257]3 years ago
6 0
The answer is a postal worker they are employed by the federal government
DedPeter [7]3 years ago
3 0
.b A driver who operates a garbage truck
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What is the deceleration (in m/s2) of a rocket sled if it comes to rest in 1.7 s from a speed of 1020 km/h? (Such deceleration c
fgiga [73]

Answer:

40.47m/s²

Explanation:

Acceleration is the change in velocity of a body with respect to time.

Acceleration = change in velocity/time

Given speed = 1020km/hr

Time = 1.7s

Converting 1020km/hr to m/s we have;

(1020×1000/3600)m/s

= 1,020,000/3,600

= 283.3m/s

Acceleration = 283.3/7

Acceleration = 40.47m/s²

Deceleration is therefore 40.47m/s²

6 0
3 years ago
Sunlight is reflected off of a puddle of water ahead of a driver. The index of refraction of the water is 1.333. If a driver sit
Lynna [10]

Answer:

option C is correct

distance from the driver is 2 m

Explanation:

Given data

index of refraction of the water n = 1.333

driver height from ground=  1.5 m

to find out

What angle does light become maximally polarized and what distance from the driver will polarized

solution

we know that n1 for water = 1.33 and we know for air n2 = 1

so  tan(θ)  = n1 / n2

tan(θ)  = 1.33 / 1

so (θ) = 53.06 degree

so for distance d will be calculate as

tan ( 90 - (θ) ) = height / distance

tan ( 90 - 53.06 ) = 1.5 / distance

distance = 1.5 / 0.7519

distance = 1.994 m  = 2 m

so option C is correct

distance from the driver is 2 m

5 0
3 years ago
The first wave that forms when the wind begins to blow across the ocean surface is a ________.
seraphim [82]

The first wave that forms when the wind begins to blow across the ocean surface is a <u>capillary wave</u>

The capillary waves represent the initial state of a wave that are produced by vortices in a flat sea. When the winds blow over an ocean, energy is transferred from the wind to the sea. and that produced the waves. They are also presented as ripples.

The capillary waves have a wavelength less than 1.7 cm or 0.68 inches and its speed of 0.2 to 0.3 meter per second.

<h3>What is a capillary wave?</h3>

It is a wave that is travelling along the interface boundary of a fluid and it is influenced by the effect of surface tension and the gravity.

Learn more about capillary wave at brainly.com/question/15663649

#SPJ4

8 0
2 years ago
An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. When the craft was stationary
Assoli18 [71]

Answer:

The tension in the cable when the craft was being lowered to the seafloor is 4700 N.

Explanation:

Given that,

When the craft was stationary, the tension in the cable was 6500 N.

When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N.

The drag force of 1800 N will act in the upward direction. As it was lowered or raised at a steady rate, so its acceleration is 0. As a result, net force is 0. So,

T + F = W

Here, T is tension

F = 1800 N

W = 6500 N

Tension becomes :

T=W-F\\\\T=6500-1800\\\\T=4700\ N

So, the tension in the cable when the craft was being lowered to the seafloor is 4700 N.

7 0
3 years ago
It took 50 joules to push a shopping cart 5 meters.with what face was the shopping cart pushed?
gladu [14]
Hello! So Ik this can be wrong but I worked hard for it(: It took 50 joules to push a shopping cart 5 meters with what force was the shopping cart pushed. blinded him to enable him and his men to escape. the answer is: round. Done!
4 0
3 years ago
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