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Zigmanuir [339]
3 years ago
13

Find the range of projectile launched at the angle of 45 with an intial velocity of 25 m/s

Physics
1 answer:
Mekhanik [1.2K]3 years ago
5 0

Answer:

10

Explanation:

Given that :

Initial Velocity (u) = 25 m/s

Range can be obtained using the relation :

Range = (u² * sin2θ) / g

g = 10m/s ; θ = 45

Range = [10² * sin2(45)] / 10

Range = [100 * 1] ÷ 10

Range = 10

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Spiderman, whose mass is 70.0 kg, is dangling on the free end of a 12.2-m-long rope, the other end of which is fixed to a tree l
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Answer:

U = -3978.8 J

Explanation:

The work of the gravitational force U just depends of the heigth and is calculated as:

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for calculate the alture we will use the following equation:

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Where L is the large of the rope and θ is the angle.

Replacing data:

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h = 5.8 m

Finally U is equal to:

U = -70(9.8)(5.8)

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3 years ago
A 25-kg wagon has a momentum of 300kg m/s. What is it’s acceleration?
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3 years ago
A planet has a surface temperature of 95.0 K and an atmospheric pressure of 1.60 atm. If 4.87 L of atmosphere has a mass of 28.6
mr Goodwill [35]

Answer:

M=28.88 gm/mol

Explanation:

Given that

T= 95 K

P= 1.6 atm

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We know that gas equation for ideal gas

P V = n R T

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Now by putting the values

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3 0
3 years ago
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