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n200080 [17]
3 years ago
9

Under copyright law people have to get permission to any photos you take post to social media sites?

Physics
1 answer:
Sliva [168]3 years ago
4 0
Yes. You must ask for permission to use, modify and/or redistribute any picture posted by another person.
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A gun has a muzzle speed of 90 meters per second. What angle of elevation should be used to hit an object 150 meters away? Negle
Artist 52 [7]

Answer:

θ₀ = 84.78° (OR) 5.22°

Explanation:

This situation can be treated as projectile motion. The parameters of this projectile motion are:

R = Range of Projectile = 150 m

V₀ = Launch Speed of Projectile = 90 m/s

g = 9.8 m/s²

θ₀ = Launch angle (OR) Angle of Elevation = ?

The formula for range of a projectile is given as:

R = V₀² Sin 2θ₀/g

Sin 2θ₀ = Rg/V₀²

Sin 2θ₀ = (150 m)(9.8 m/s²)/(90 m/s)²

2θ₀ = Sin⁻¹ (0.18)

θ₀ = 10.45°/2

<u>θ₀ = 5.22°</u>

Also, we know that for the same launch velocity the range will be same for complementary angles. Therefore, another possible value of angle is:

θ₀ = 90° - 5.22°

<u>θ₀ = 84.78°</u>

7 0
3 years ago
Which of the following best represents potential energy being converted to kinetic energy? A thrown baseball lands on the ground
skelet666 [1.2K]
If I am correct a <span>child holds a toy above her head and then lets it fall to the ground. </span>
4 0
3 years ago
Plate tectonics is unique to which terrestrial planet?
kow [346]
Hey there 

Plate tectonics are found on Earth. 
They are all over the world 

When a plate collides natural disasters happen. 
Answer is Earth 

Hope this helps  
5 0
3 years ago
Read 2 more answers
Which skateboarder has greater momentum?
Verizon [17]

Answer:

skateboard b

Explanation:

p=mv

skateboard a

p=(60kg)(1.5m/s)=90kg*m/s

skateboard b

p=(50kg)(2m/s)=100kg*m/s

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2 years ago
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At the Earth's surface, warm air expands and rises, creating
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Cold air is dense and sinks to the surface to create what is
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8 0
3 years ago
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