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ANTONII [103]
3 years ago
7

David is mowing his lawn. He has been riding on the mower at 50m/hr for 2.5 hours? What is the distance of the area David has mo

wed
Physics
2 answers:
DaniilM [7]3 years ago
6 0

Answer:

125 metres

Explanation:

Distance = speed × time

Here , speed = 50m/hr

time = 2.5 hr

So,

Distance = 50 × 2.5

=125 m

Arisa [49]3 years ago
5 0

Answer:

the distance of the area David has mowed =  125 m

Explanation:

given:

He has been riding on the mower at 50m/hr for 2.5 hours?

find:

What is the distance of the area David has mowed

formula = .distance = velocity x time

where velocity = 50 m/hr.

time = 2.5 hours

plugin values into the formula:

distance = 50 m/hr x 2.5 hr.

distance = 125 m

therefore,

the distance of the area David has mowed =  125 m

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If you walk 15m west and 7m east. what is your displacement?
choli [55]

If we consider our origin to be zero then if we walk 15m west then back 7m east our displacement would be the difference (since west and east are opposite directions to one another).

15m - 7m = 8m

And so, we are 8 meters away from our origin, thus our displacement is 8 meters.

6 0
3 years ago
A traveling electromagnetic wave in a vacuum has an electric field amplitude of 98.9 V/m . Calculate the intensity ???? of this
Pani-rosa [81]

Answer:

intensity = 12.98 W/m^2

Energy = 3.93 J

Explanation:

As we know that the magnitude of electric field intensity is given as

E = 98.9 V/m

now we know that intensity of the wave is given as the product of energy density and speed of the wave

intensity = \frac{1}{2}\epsilon_0 E^2 c

intensity = \frac{1}{2}(8.85 \times 10^{-12})(98.9)^2(3\times 10^8)

intensity = 12.98 W/m^2

so intensity is the energy flow per unit area per unit of time

so the energy that flows through the area of 0.0259 m^2 in 11.7 s is given as

Energy = Area \times time \times intensity

Energy = 0.0259(11.7)(12.98)

Energy = 3.93 J

7 0
3 years ago
The existence of which aspect of the universe supports the big bang theory? cosmic background radiation galactic clusters irregu
zysi [14]
The big bang theory refers to a theoretical concept that explains the creation of our universe. It postulates that the universe started with a giant explosion that created all matter and propelled it outwards in all directions. It is the existence of cosmic background radiation that supports the big bang theory  within cosmology. 
7 0
3 years ago
Read 2 more answers
Which term is undefined?
tensa zangetsu [6.8K]

The term which is considered as being undefined is referred to as a point and is therefore denoted as option A in this context.

<h3>What is a Point?</h3>

This is defined as as small round mark written on a plane which signifies the position or location of a substance. This can also be seen as a dot and is also used to separate a group of numbers such as in the case of decimals etc.

It is referred to as being undefined alongside a plane, line etc as a result of it only being explained using specific examples and descriptions unlike a segment which can be viewed and understood easily when working on the parameter.

This is therefore the reason why a point is undefined and the most appropriate choice.

Read more about Point here brainly.com/question/17206319

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3 0
2 years ago
The CBR method of flexible pavement design gives an idea about the:
marta [7]

Answer:

A. quality of road-making material

Explanation:

The CBR method of flexible pavement design gives an idea about the:

A. quality of road-making material

B. traffic intensities

C. characteristics of soil

D. All of the above

The California Bearing Ratio (CBR) test is a penetration test used to evaluate the subgrade strength of roads and pavements. The results of these tests are used with the curves to determine the thickness of pavement and its component layers. it is the measure of the resistance of a material against the penetration of a standard plunger.

This can be used to determine the quality of road making material. CBR is expressed as the percentage of the actual load to the standard load.

3 0
4 years ago
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