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il63 [147K]
3 years ago
13

Add these two velocity vectors to find the magnitude of their resultant vector. A. 4.6 meters/second B. 0.8 meters/second C. 2.2

meters/second D. 7.0 meters/second

Physics
1 answer:
Kay [80]3 years ago
5 0

Answer:a

Explanation:vector 2 will slow down vector 1 but vector 1 will still be going. i think.

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The answer is A. Which is true

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The sun is bright and when its cold there is no sun
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The planet's hawks and block their near each other in the door again system the dworkin's have very advanced technology and a do
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A camera takes a properly exposed photo with a 4.0 mm diameter aperture and a shutter speed of 1/1000 s. If the photographer foc
hoa [83]

Answer:

option E

Explanation:

given,

diameter = 4 mm

shutter speed = 1/1000 s

diameter of aperture = ?

shutter speed = 1/250 s

exposure time to the shutter time

E V = log_2(\dfrac{N^2}{t})

N is the diameter of the aperture and t is the time of exposure

now,

log_2(\dfrac{N^2}{t_1})=log_2(\dfrac{N^2}{t_2})

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inserting all the values

\dfrac{4^2}{1000}=\dfrac{N_2^2}{250}

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hence , the correct answer is option E

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3 years ago
The amount of energy required to raise the temperature of one gram of water by one celsius degree is called a
Elena L [17]

The amount of energy required to raise the temperature of one gram of water by one celsius degree is called a calorie.

<h3>How can you define calorie?</h3>

In physics, we can define it as a unit of measurement that defines the amount of energy to raise the temperature of 1 gram  of water by 1°C. Each material has its unique calorie, however by definition we use water as it is the lowest of all the elements.

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See more about calorie at brainly.com/question/22374134

#SPJ1

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2 years ago
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