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3 years ago

I REALLY NEED HELP!!!!

Physics

1 answer:

KIM [24]3 years ago

7 0

Answer:

The cans should move towards each other. This is due to Bernoulli's principle

that the air pressure will be reduced in the area between the cans. This is similar to lift on an airplane wing due to the faster moving air over the top of

the wing or the curving of a pitched baseball due to the rotation of the ball

causing greater air pressure on one side of the ball as compared to the air pressure on the other side of the ball.

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If 270 watts of power is used in 42 seconds, how much work was done

navik [9.2K]

Answer: W = 11340J

Explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.

So this is the Formula: Power = Work / Time.

Step 1: Find the Formula

P = W / T

Step 2: Make W the subject of the equation.

W = PT

Step 3: Given.

P = 270 Watts, T = 42 seconds

Step 4: Substitute these values into equation 2 .

W = 270(42)

Step 5: Simplify.

W = 11340J

The amount of work done was 11340.

~I hope I helped you! :)~

4 0

4 years ago

As you approach a roundabout, you should __________________.

motikmotik

The answer should be B

8 0

4 years ago

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Taigas, tundra and tropical rainforests share what common abiotic component?

e-lub [12.9K]

Answer:

water

Explanation:

hope this helps

6 0

3 years ago

A 40.0 kg wagon is towed up a hill inclined at 18.5 degrees with respect to the horizontal. The tow rope is parallel to the incl

sp2606 [1]

Answer:

7.9m/s

Explanation:

We are given that

Mass of wagon=40 kg

$\theta=18.5^{\circ}$

Tension= $140 N$

Initial velocity of wagon= $u=0$

Displacement=s=80 m

Net force applied on wagon= $F=T-mgsin\theta=140-40(9.8)sin18.5=15.7 N$

By using $g=9.8m/s^2$

$a=\frac{F}{a}=\frac{15.7}{40}=0.39m/s^2$

We know that

$v^2-u^2=2as$

Using the formula

$v^2=2\times 0.39\times 80$

$v=\sqrt{2\times 0.39\times 80}=7.9m/s$

5 0

3 years ago

Can someone pls help me answer this I’ll give brainliest to whoever actually answers it

sergejj [24]

Answer:

Limestone classifacation: sedimentary rock

Sandstone: sedimentary rock

7 0

3 years ago