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leonid [27]
2 years ago
6

The equation y = 2x + 3 represents the cost y (in dollars) of mailing a package that weighs x pounds.

Physics
1 answer:
White raven [17]2 years ago
6 0

Answer:

what is your question though

Explanation:

??? ??? ??? ??? ???

You might be interested in
The Balmer series is formed by electron transitions in hydrogen that
yulyashka [42]

Answer:

b. end on the n = 2 shell.

Explanation:

When hydrogen atoms move from higher energy level to lower energy level then it shows spectral lines and these lines are known as Balmer series. The only four lines are visible and other liens are not in the visible range.

The Balmer series formed by hydrogen electron and it ends when n = 2.

Therefore the answer is b.

b. end on the n = 2 shell.

8 0
3 years ago
An artillery shell is fired at an angle to the horizontal. Its initial velocity has a vertical component of 150 meters per secon
Nana76 [90]

Answer:

300.16m/s

Explanation:

An artillery shell is fired at an angle to the horizontal. Its initial velocity has a vertical component of 150 meters per second and a horizontal component of 260 meters per second. What is the magnitude of the initial velocity of the shell?

note velocity is the change in displacement to time

to find the magnitude of the initial speed ,

we will find the square of the vertical component plus the square of the horizontal component. then we look for the square root

U=\sqrt{Ux^2+Uy^2}

U=\sqrt{260^2+150^2}

U=90,100^2

U=300.16m/s

means that it covers 300.16m in 1 seconds

5 0
3 years ago
11. Hans and Frans are two workers being considered for a job at the UPS loading dock. Hans boasts that he can lift a 100 kg box
Marta_Voda [28]

Answer:

Hans is more powerful

Explanation:

Power: This can be defined as the rate at which work is done or energy is used up.

The expression for power is given as,

P = E/t

P = mgh/t................. Equation 1

Where P = power, W = Work, t = time, m = mass, h = height, g = acceleration due to gravity.

Hans' power

P = mgh/t

Given: m = 100 kg, h = 2 m, g = 9.8 m/s², t = 3 s

Substitute into equation 1

P = 100(9.8)(2)/3

P = 653.33 W.

Frans' power

P' = mgh/t

Given; m = 200 kg, h = 5 m, t = 20 s.

P' = 200(5)(9.8)/20

P' = 9800/20

P' = 490 W

from the above,

since P>P'

Hence, Hans is more powerful

8 0
3 years ago
3. Light travels from the Sun to Earth in 8.3 min. Given that the speed of light is 3.00108 m/s, what is the distance in meters
nasty-shy [4]

Answer:

13

Explanation:

13.0120481928 it is the distance

4 0
2 years ago
Which of the following changes occurs during nuclear fission?
coldgirl [10]

Answer:

The parent nucleus splits into lighter daughter elements

Explanation:

Nuclear fission involves the splitting of nucleus of a lighter element with smaller particles

8 0
3 years ago
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