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mariarad [96]
3 years ago
12

What did scientists predict the big bang should have left?

Physics
2 answers:
snow_tiger [21]3 years ago
7 0
I believe the answer is 'A'
VARVARA [1.3K]3 years ago
4 0

the answer is A

hope this  helps b!

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What is the momentum of a 248 g rubber ball traveling at 30.0 m/s?
Vikentia [17]
<span>The answer is, 7.44 kg*m/s</span>
4 0
3 years ago
The critical angle for a certain air-liquid surface is 47.7°. What is the index of refraction of the liquid? Round to the neares
KengaRu [80]

Answer:

The index of refraction of the liquid is 1.35.

Explanation:

It is given that,

Critical angle for a certain air-liquid surface, \theta_1=47.7^{\circ}

Let n₁ is the refractive index of liquid and n₂ is the refractive index of air, n₂ =1

Using Snell's law for air liquid interface as :

n_1\ sin\theta_1=n_2\ sin(90)

n_1\ sin(47.7)=1

n_1=\dfrac{1}{sin(47.7)}

n_1=1.35

So, the index of refraction of the liquid is 1.35. Hence, this is the required solution.

5 0
3 years ago
An object 82 cm high forms a virtual image 4.1 cm high located 4.6 cm behind a mirror. Find the object distance.
ioda

Answer:

The object distance is 92 cm.  

Explanation:

let v be the image distance and h be the height of the image, let u the be the object distance and H be the height of the object.

then, the magification of the mirror is given by:

m = -v/u and m = h/H

so, -v/u = h/H

         u = -v×H/h

            = -(-4.6)×(82)/(4.1)

            = 92 cm

Therefore, the object distance is 92 cm.

8 0
3 years ago
What is the average electric current in a wire, when a charge of 150 C passes in 30 s?
NARA [144]
We know, I = Q / t
Here, Q = 150 C
t = 30 s

Substitute their values, 
I = 150 / 30
I = 5 A

In short, Your Answer would be 5 Ampere

Hope this helps!
7 0
3 years ago
The heater in the thermostat control circuit in the cooling mode is active when the ____.
Gnoma [55]
Here is the correct answer that would best complete the given statement above. The heater in the thermostat control circuit in the cooling mode is active when the <span>heat anticipator in the thermostat control circuit is in the heating mode. Hope this is the answer that you are looking for. </span>
7 0
3 years ago
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