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IgorC [24]
3 years ago
7

Calculate the frequency of yellow light with a wavelength of 580x10 to the -9

Physics
1 answer:
aniked [119]3 years ago
3 0
5.2x10¹⁴ hz is your answer.
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A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum, brass, or copper. The values
marshall27 [118]

Answer:

C. Copper

Explanation:

F = Force on string

L_0 = Intial length of string

A = Area of string

E = Young's modulus of material

Change in length is given by

\Delta L=\frac{FL_0}{AE}

It can be seen that the change in length is inversely proportional to the Young's modulus of the material.

Here

E_a=0.7\times 10^{11}\ Pa

E_b=0.91\times 10^{11}\ Pa

E_c=1.1\times 10^{11}\ Pa

\\\Rightarrow E_c>E_b>E_a

So, copper will stretch the least.

5 0
3 years ago
The tendency to pull other objects toward it is called
ella [17]

Answer:

""gravity. the force that pulls on objects and causes acceleration if the objects are not balanced by an opposing force. speed. distance traveled per unit time. Newton's Second Law of Motion.""

Explanation:

8 0
3 years ago
A tennis ball was thrown into the air with a speed of 22.5 m/s. It was caught at the same height above the ground. a. How fast w
Salsk061 [2.6K]
A).  The ball was moving at zero speed at the peak.

b).  The acceleration of the ball was 9.8 m/s² downward, from
the time the hand threw it until the time the hand caught it.

c).  see the answer to b).

d).  see the answer to b).

e).  The ball was in the air for  2 (22.5/9.8) = 4.6 seconds.

f).  The ball was moving down at 22.5 m/s when it was caught.
8 0
3 years ago
Object has a mass of 35g and a density of 5g/cm3. <br> What is the volume? *
anygoal [31]

Answer:

<h3>The answer is 7.0 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question

mass = 35 g

volume = 5 g/cm³

We have

volume =  \frac{35}{5}  \\

We have the final answer as

<h3>7.0 mL</h3>

Hope this helps you

8 0
3 years ago
A resistor and a capacitor are connected in parallel and the combination is connected to a 120 V DC source. Determine the voltag
Jet001 [13]

Answer:

voltages across the resistor and the capacitor are same

Explanation:

given data

resistor and a capacitor = parallel

power supply = 120 V  

                   

solution    

as we have given resistor and a capacitor both are connect in parallel in connection          

so when  resistor and a capacitor  are parallel  as directly across the source so the voltages across both components  will be same or equal

and that is equal to the source 120 V DC        

so answer is  both are same  

8 0
3 years ago
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