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charle [14.2K]
3 years ago
12

Would you rather be beautiful but you cant look at yourself or be ugly and no one else can see you

Physics
1 answer:
WARRIOR [948]3 years ago
6 0
Whats the point of being either of them?

If your Beautiful, you cant look at yourself...

And if your ugly, no one else can see you...

I'd rather not exist LOL XD
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in the design a thermos lab, you compared the temperature of your thermos with a container that you did not insulate. what was t
irina [24]
To see if the insulation would affect the temp of whatever you are measuring. <span />
4 0
3 years ago
220V is applied to two different conductors made of the same material. One conductor is twice as long and twice as thick as the
ollegr [7]

Answer:

Explanation:

For calculating resistance of a conductor , the formula is

R = ρ l / A , ρ is specific resistance , l is length and A is cross sectional area of wire.

For first wire length is l₁ , area is A₁ resistance is R₁, for second resistance is R₂ , length is l₂ and area is A₂

Given , l₁ = 2l₂ , A₁ = 4A₂ , area is proportional to square of thickness.

R₁ / R₂ = I₁A₂ / I₂A₁

= 2l₂ x A₁ / 4 I₂A₁

= 1 / 2

2R₁ = R₂

Power = V² / R

Ratio of power = (V² / R₁) x (R₂ / V²)

= R₂ / R₁

= 2 .

7 0
3 years ago
What are the signs of the velocity, force, and acceleration (components) afterthe cart is released and is moving qway from the m
SVETLANKA909090 [29]

Answer:

car is moving away its direction is negative.

the speed must also be negative.

speed this distance decreases the acceleration is negative and if the speed is increasing the acceleration is positive.

Explanation:

In the exercise they indicate that the direction to the motion sensor is positive, as they indicate that the car is moving away its direction is negative.

The speed of the car is

           v = (x₂-x₁) / t

As the positions are negative, and the car moves away the speed must also be negative.

The analysis for acceleration must be very careful if the speed this distance decreases the acceleration is negative and if the speed is increasing the acceleration is positive.

3 0
3 years ago
Which describes refraction? *
sergey [27]

Answer:

Refracted rays travel through a boundary into a new medium.

Explanation:

Refracted rays travel through a boundary into a new medium. is only true for refraction.

The angle of incidence is the same for angle of refraction, is not true for refraction. Refraction follows Snell's law, states that ratio of the sine of the angle of refraction and the sine of the angle of incidence is always constant and equivalent to the ratio of phase velocities of the two mediums it is passing through.

Refracted rays change direction and go back to the original medium is false for refraction however, it is true for reflection.

5 0
3 years ago
What causes the acceleration to increase or decrease?
mash [69]
The amount of velocity and time in an object causes acceleration to increase or decrease.
6 0
3 years ago
Read 2 more answers
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