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tatuchka [14]
4 years ago
12

How does brainly work i want to get used to this more often.

Physics
2 answers:
lapo4ka [179]4 years ago
7 0

Answer:

it depends on what you need to learn how to use respond to this whith what you need help with  and i will  get back to you  

Explanation:

Fiesta28 [93]4 years ago
4 0

Answer:

do not worry bro you will know how to use it

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I need a short answer ?
mars1129 [50]

Answer:

Explanation:

7a) t = d/v = 100/45cos14.5 = 2.29533...= 2.30 s

7b) h = ½(9.81)(2.29533/2)² = 6.46056... = 6.45 m

  or

  h = (45sin14.5)² / (2(9.81)) = 6.47 m

which rounds to the same 6.5 m when limiting to the two significant digits of the initial velocity.

7 0
3 years ago
Which one of the following is a derived Si unit a. Newton, b. Meter, c. Mole, d. Kiogram<br>​
Sever21 [200]

I think newton is the answer

4 0
3 years ago
Read 2 more answers
Manufacturers sometimes use science to make foods more nutritious. Food manufacturers can make reduced fat potato chips, besides
pogonyaev
All of the choices are correct.
5 0
4 years ago
Read 2 more answers
A forward horizontal force of 50 N is applied to crate a second horizontal force of 180 N is applied to crate in the opposite di
e-lub [12.9K]

Answer:

130n on the 2nd horizontal

Explanation:

8 0
3 years ago
A 10.0-g bullet is fired into a 200-g block of wood at rest on a horizontal surface. after impact, the block slides 8.00 m befor
miss Akunina [59]
<span>Step 1 -- determine the acceleration of the 200-g block after bullet hits it a = (coeff of friction) * g g = acceleration due to gravity = 9.8 m/sec^2 (constant) a = 0.400*9.8 a = 3.92 m/sec^2 Step 2 -- determine the speed of the block after the bullet hits it Vf^2 - Vb^2 = 2(a)(s) where Vf = final velocity = 0 (since it will stop) Vb = velocity of block after bullet hits it a = -3.92 m/sec^2 s = stopping distance = 8 m (given) Substituting values, 0 - Vb^2 = 2(-3.92)(8) Vb^2 = 62.72 Vb = 7.92 m/sec. M1V1 + M2V2 = (M1 + M2)Vb where M1 = mass of the bullet = 10 g (given) = 0.010 kg. V1 = velocity of bullet before impact M2 = mass of block = 200 g (given) = 0.2 kg. V2 = initial velocity of block = 0 Vb = 7.92 m/sec Substituting values, 0.010(V1) + 0.2(0) = (0.010 + 0.2)(7.92) Solving for V1, V1 = 166.32 m/sec. Therefore the answer is (B) 166 m/s!</span>
6 0
3 years ago
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