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Sliva [168]
3 years ago
12

Science: Physics AND Biology - Please help me with these, it's due tonight.

Physics
1 answer:
Ostrovityanka [42]3 years ago
7 0
The answer to the first question is that plants make glucose and oxygen by taking in CO2 and H20.

The answer to the second question is having a heavier mass increases the force of a moving object. That is the Second Law of Motion, F = ma.
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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
7. How is the current found in a parallel circuit?
Naya [18.7K]

Answer:

the current in a parallel circuit is found by idk

Explanation:

4 0
3 years ago
ANSWER PLS NEED ASAP AS FAST AS HUMANLY POSSIBLE
Soloha48 [4]

Answer:

Should be B

Explanation:

As the light enters the prism at an angle, the glass causes the light to travel slower. The speed is affected by the frequency of the light. So each frequency is slowed by a different amount, causing the colors to separate.

Hope this helps!

6 0
3 years ago
What type of energy does fresh vegetables have?
lyudmila [28]
Well it's energy comes from the sun since the sun gives it sunlight to help it grow
5 0
3 years ago
Read 2 more answers
Please help me, I'm not good in physics.
expeople1 [14]

Answer:

Upward direction.

The friction is kinetic friction

3 0
3 years ago
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