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Vinil7 [7]
3 years ago
13

A convex lens bulges outward in its center. and it refracts light rays towards its center. Which represents a convex lens? A) A

B) B C) A and B D) neither A nor B
Physics
2 answers:
vlada-n [284]3 years ago
7 0

Answer:

A

Explanation:

Mila [183]3 years ago
4 0

Answer:

Its A

Explanation:

The lens bulges outward in its center, like reading glasses.

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Answer:

0.08 solar masses

Explanation:

0.08 solar mass is required to support nuclear fusion.

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What happens to the intensity of solar energy as latitude increases
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As the latitude increases the intensity of solar energy decreases
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Grinding quartz crystals down to produce sand is an example of a a. change of state. c. chemical reaction. b. chemical change. d
seraphim [82]
D. A physical change

The makeup of it is still the same it's just ground up
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The valence of aluminum is +3, and the valence of chlorine is –1. The formula for aluminum chloride is correctly written as A. A
zzz [600]
The correct answer is D actually
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3 years ago
Calculate the distance traveled by a projectile as a function of launch angle. Compare the distances for two projectiles launche
DaniilM [7]

Answer:

R = x_{max} = \frac{v^2\sin(2\theta)}{g}\\\frac{R_1}{R_2} = \frac{\sin(2\theta_1}{\sin(2\theta_2}

Explanation:

Using kinematics equations:

\Delta x = v_{0x}t\\\Delta y = -\frac{1}{2}gt^2+v_{0y}t

Use \Delta y = 0 due to condition of distance traveled.

Solving second equation for time, there are two solutions. t=0 and

t=\frac{2v_{0y}}{g}

Use the expression in the first equation to have

R = \frac{2v^2 \cos\theta\sin\theta}{g}

Using trigonometric identities, you have the answer of the distance.

By doing the ratio for two different angles, you have the second answer. Due to sine function properties, the distances can be the same to complementary angles. Example, for 20° and 70°, the distance is the same.

5 0
3 years ago
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