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Aleonysh [2.5K]
3 years ago
11

A steel tape (a=1.300 E-5 per Celsius degrees) measures 200.0 m at 15.00 degrees celsius. It’s length at 55.00 degrees celsius i

s
Physics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

200.1 m is the answer

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An airplane flies at a speed of 250 mi/hr, 40 degrees south of east. A wind blows at a speed of 35 mi/hr 30 degrees west of sout
alina1380 [7]

Compute the components of the given vectors. Let P denote the plane's velocity vector, and W the wind. Then

P=\langle P_x,P_y\rangle=\langle250\cos(-40^\circ),250\sin(-40^\circ)\rangle

\implies P=\langle191.5,-160.7\rangle

W=\langle35\cos(-120^\circ),35\sin(-120^\circ)\rangle=\langle-17.5,-30.3\rangle

The resultant velocity (rounded) is

P+W=\langle174,-191\rangle

with magnitude \sqrt{174^2+(-191)^2}=258 and direction \tan^{-1}\frac{-191}{174}=-47.7^\circ, or about 258 mi/hr at 47.7 degrees south of east.

3 0
3 years ago
a family drives from boston (100 miles away) to new york (500 miles away) in 10 hours . How fast were they were traveling?
Fynjy0 [20]

It should be 60 mph. Because if  you divide 600 by 10 it’s 60

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3 years ago
A manufacturer supplies plastic cups that are placed under the legs of the chair
777dan777 [17]

A manufacturer supplies plastic cups that are placed under the legs of the chair. The manufacturer's claim is that there will be no marks of chair due to pushing or pulling on the floor.

<h3>Who is a manufacturer?</h3>

A manufacturer is a person who converts his idea of developing and constructing any item using some set of machines.

A manufacturer supplies plastic cups that are placed under the legs of the chair.

When there is a relative motion between two objects, friction force causes the opposition to this motion. Between chair and floor, there will be high magnitude of force. But if we insert plastic cups in the legs of chair, then the friction between cup and floor will be less. This keeps the floor protected form any scratches.

Learn more about manufacturer.

brainly.com/question/15494518

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2 years ago
Please I need with this
guajiro [1.7K]
I think its b im not sure im in 8th grade
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3 years ago
<img src="https://tex.z-dn.net/?f=what%20%5C%3A%20is%20%5C%3A%20refraction%20%5C%3A%20of%20%5C%3A%20light%20%5C%3A%20%20%7B%3F%7
topjm [15]

When light passes through one transparent medium to another transperent medium it bends and that beding of light is know as refraction of light !

8 0
3 years ago
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