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Oxana [17]
3 years ago
15

1. Which characteristics of Pop Art are evident in the image? Select all that apply.

Physics
2 answers:
kiruha [24]3 years ago
5 0
+art based on modern popular culture and the mass media, especially as a critical or ironic comment on traditional fine art values.
+I believe the answer is A, B, and C
Cloud [144]3 years ago
3 0
I think the answer is C
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Steam enters a turbine at 400K and exhausts at 360K. Calculate the maximum efficiency. =%
kozerog [31]

The maximum efficiency is 10%

Explanation:

The maximum efficiency of a machine is given by:

\eta=1-\frac{T_C}{T_H}

where

T_H is the temperature of the hot reservoir

T_C is the temperature of the cold reservoir

For the machine in this problem, we have:

T_H=400K is the temperature of the hot reservoir

T_C=360K is the temperature of the cold reservoir

substituting, we find the max efficiency:

\eta=1-\frac{360}{400}=0.1

So, the efficiency is 0.10 (10%).

Learn more about temperature:

brainly.com/question/1603430

brainly.com/question/4370740

#LearnwithBrainly

8 0
3 years ago
What is it’s vertical distance below the top of the cliff ?
MakcuM [25]

Answer:

It should be 1 meter, but I'm no scientist.

Explanation: IDK

7 0
3 years ago
If an object that weighs 20 N is lifted from the ground to a
Radda [10]

Answer:

false 20 n x 0.32 m = 6.4 J

3 0
3 years ago
Light is described as having a dual wave-particle nature. Which piece of evidence provides support for the model of light as a w
S_A_V [24]

Answer:

The evidence that supports the wave particle nature of light as a wave is:

"Light reflects when it hits a surface."

Explanation:

Light exhibit wave-particle duality. This means, in some cases the properties of light are just like a wave and in other cases it behaves as particles.

The properties like reflection or refraction from a surface are attributed as properties of waves. The phenomena of interference and diffraction also fall in this category.

Therefore, from the given options, the only option that supports the evidence of light as a wave is "Light reflects when it hits a surface", as reflection is entirely the property of a wave.

8 0
3 years ago
Read 2 more answers
While standing on a bridge 15 m above the ground, you drop a stone from rest. When the stone has fallen 3.2 m, you throw a secon
AURORKA [14]

Answer:

11.3 m/s

Explanation:

First, find the time it takes for the first stone to fall 3.2 m.

Given:

Δy = 3.2 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

(3.2 m) = (0 m/s) t + ½ (9.8 m/s²) t²

t = 0.81 s

Next, find the time for the first stone to land.

Given:

Δy = 15 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

(15 m) = (0 m/s) t + ½ (9.8 m/s²) t²

t = 1.75 s

The difference in time is 1.75 s − 0.81 s = 0.94 s.  Find the initial velocity needed for the second stone to land after that amount of time.

Given:

Δy = 15 m

a = 9.8 m/s²

t = 0.94 s

Find: v₀

Δy = v₀ t + ½ at²

(15 m) = v₀ (0.94 s) + ½ (9.8 m/s²) (0.94 s)²

v₀ = 11.3 m/s

5 0
3 years ago
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