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3 years ago

A vector is 0.888 m long and

Physics

1 answer:

Mademuasel [1]3 years ago

4 0

Answer:

182.04

Explanation:

0.888×205=n

that where you the answer

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Describe how air quality has changed since the Industrial Revolution.

Alisiya [41]

Answer:

MRCORRECT has answered the question

Explanation:

The Industrial Revolution impacted the environment. The world saw a major increase in population, which, along with an increase in living standards, led to the depletion of natural resources. The use of chemicals and fuel in factories resulted in increased air and waterpollution and an increased use of fossil fuels.

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3 years ago

A convex mirror with a focal length 20 cm creates a virtual image 10cm away from the mirror. What is the position of the object?

nikdorinn [45]

Answer:

$20$ cm

Explanation:

$d_{o}$ = distance of the object = ?

$f$ = focal length of the convex mirror = - 20 cm

$d_{i}$ = distance of the image = - 10 cm

Using the lens equation

$\frac{1}{d_{o}} + \frac{1}{d_{i}} = \frac{1}{f}$

$\frac{1}{d_{o}} + \frac{- 1}{10} = \frac{- 1}{20}$

$d_{o} = 20$ cm

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3 years ago

A hammer falls from a construction worker's hand 30m above the ground at the same time that a filled soft drink can is projected

drek231 [11]

For harmer:-

initial velocity=u=0m/s

Acceleration due to gravity=10m/s^2

Now

$\\ \sf\longmapsto s=ut+\dfrac{1}{2}gt^2$

$\\ \sf\longmapsto s=0t+\dfrac{1}{2}(10)t^2$

$\\ \sf\longmapsto s=5t^2\dots(1)$

For soft drink:-

u=24m/s

$\\ \sf\longmapsto 30-s=(24)t+\dfrac{1}{2}(10)t^2$

Using eq(1)

$\\ \sf\longmapsto 30-5t^2=24t-5t^2$

$\\ \sf\longmapsto 24t=30$

$\\ \sf\longmapsto t=\dfrac{30}{24}$

$\\ \sf\longmapsto t=1.2s$

After 1.2s they will meet.

Now

putting t in eq(1)

$\\ \sf\longmapsto s=5t^2=5(1.2)^2=5(1.44)=7.2m$

At the height of 7.2m they will meet

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3 years ago

While practicing the trumpet you notice that every time you play a particular note a window in the room rattles. How can you exp

kherson [118]

The sound waves travel because of the pitch of the note so the window rattles.

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3 years ago

Tech a says that the pcv system recirculates exhaust gases into the intake manifold. tech b says that the pcv system recirculate

d1i1m1o1n [39]

Tech a says that the pcv system recirculates exhaust gases into the intake manifold called Reconstruction debate that had federalism debate that had been an issue since the 1790s.

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1 year ago