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Marizza181 [45]

2 years ago

15

Glass does not transmit ultraviolet radiation. Suggest what happens to ultraviolet radiation when it is incident on glass. (1 ma

rk)

1 answer:

o-na [289]2 years ago

4 0

Answer:

Most of UV radiation is stopped by glass & this is why you will not get sunburns behind a glass. The glass simply filters out the UV radiation that is responsible for the sunburns & protect your skins from these energetic & somewhat harmful radiation

Explanation:

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In this lab, you will use a magnet and a simple circuit to examine the concepts of electricity and magnetism. Think about how th

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Sample Response: How can magnetic and electric fields be demonstrated?

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3 years ago

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You push on the top edge of a 1.8 m tall solid circular cylinder of iron which is 4.00 cm in diameter. You push with a horizonta

Citrus2011 [14]

Answer:

$\triangle x=3.2*10^-^5 m$

Explanation:

From the question we are told that

Height of circular cylinder is $h= 1.8m$

Diameter of cylinder $D=4cm=>0.04m$

Horizontal Force $F=900N$

$Y = 10.0 *10^1^0 N/m^2 \\B = 9.0 * 10^1^0 N/m^2\\S = 4.0 * 10^1^0 N/m^2\\$

Generally the formula for shear modulus is mathematically represented by

$G=\frac{\tau}{\gamma}$

Where

$G=Shear modulus\\\tau= shear\ stress\\\gamma=shear strain$

$G=\frac{F/A}{\triangle x/L}$

$G=\frac{900/\pi r^2}{\triangle x/1.8}$

$4.0*10^1^0=\frac{900/\pi r^2}{\triangle x/1.8}$

$4.0*10^1^0=\frac{900}{\pi r^2} *\frac{1.8}{\triangle x}$

${\triangle x} =\frac{1620}{\pi r^2* 4.0*10^1^0}$

$\triangle x=3.2*10^-^5 m$

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3 years ago

I will Mark Brainliest 1. ) Allena and Charissa were discussing whether Cl2 is an element or a compound. Allena said that it is

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The answer to question one is A.
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4 years ago

kotykmax [81]

Answer:

<em>The object-Earth system is open</em>

$F_n=ma=5\ (7.2)=36\ N$

Explanation:

<u>Accelerated Motion </u>

When an object is released in free air (with no other forces than the gravity), it describes a free-fall motion and the formulas include the acceleration of gravity as part of the calculations. But when there is another external force, then the acceleration is not the gravity, but the result of the net force exerted on the mass of the object.

By definition, an open system includes the exchange of energy from and to the surroundings, that is why all systems surrounding our planet are considered as open systems. In our case, the object is interacting with the planet's gravity and there is some other external force, which will be computed later. The object-Earth system is open.

If the object starts from rest, its initial speed is zero, and

$v_f=a\ t$

where a is the acceleration and t is the time. The distance traveled is given by :

$\displaystyle y=\frac{a\ t^2}{2}$

From the two above equations, we find that:

$v_f^2=2ay$

Solving for a

$\displaystyle a=\frac{v_f^2}{2y}$

$\displaystyle a=\frac{12^2}{2\ (10)}$

$a=7.2\ m/s^2$

It means the net force is

$F_n=ma=5\ (7.2)=36\ N$

The object's weight is

$W=5\ (9.8)=49 N$

This means there is some external force acting upwards delaying the object's fall of a magnitude of

$F_e=49-36=13\ N$

3 0

3 years ago

How much power is necessary to do 50 J of work in 5 seconds

Alex73 [517]

Power = Work / Time

If W = 50 J and T = 5s

P = W/T = 50J/5s = 10 Watts

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4 years ago

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