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3 years ago

Can an object form two or more shadows at the same how

Physics

2 answers:

IgorC [24]3 years ago

8 0

Yeah when there are many light sources from different directions

Vlad [161]3 years ago

7 0

Answer:

Yes, it can but there must be two or more than two light source at different angle.

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Cylinder A has a mass of 2kg and cylinder B has a mass of 10kg. Determinethe velocity of A after it has displaced 2m from its or

Marta_Voda [28]

The velocity of A is 5.16m/s²

<u>Explanation:</u>

Given-

mass of cylinder A, mₐ = 2kg

mass of cylinder B, mb = 10kg

Distance, s = 2m

Velocity of A, v = ?

Let acceleration due to gravity, g = 10m/s²

We know,

$a = \frac{mb * g - ma * g}{ma + mb} \\\\a = \frac{10 * 10 - 2 * 10}{ 2 + 10} \\\\a = \frac{80}{12} \\\\a = 6.67m/s^2$

We know,

$v = \sqrt{2as}$

$v = \sqrt{2 X 6.67 X 2} \\\\v = \sqrt{26.68} \\\\v = 5.16m/s^2$

Therefore, the velocity of A is 5.16m/s²

5 0

3 years ago

A 75-g mass sits 75 cm from the center of a rotating platform undergoing a uniform angular acceleration of 0.125 rad/s^2. The co

jasenka [17]

Answer:

velocity of mass when it slides of will be 1.36 m/sec

So option (b) will be correct option.

Explanation:

We have given mass of the slits m = 75 gram = 0.075 kg

Radius r = 75 cm = 0.75 m

Coefficient of kinetic friction $\mu =0.250$

Acceleration due to gravity $g=9.8m/sec^2$

When the mass slides of

$\frac{mv^2}{r}=\mu mg$

$v=\sqrt{\mu rg}=\sqrt{0.250\times 0.75\times 9.8}=1.36m/sec$

So velocity of mass when it slides of will be 1.36 m/sec

So option (b) will be correct option.

3 0

3 years ago

When a manufacturer intentionally misleads customers by only revealing part of the truth about the evidence that supports a prod

torisob [31]

The answer would be A. failure to close

7 0

3 years ago

Each vertical line on the graph is 1 millisecond (0.001 s) of time. What is the period and

Mekhanik [1.2K]

Explanation:

Given that,

Each vertical line on the graph is 1 millisecond (0.001 s) of time.

We need to find the period and the frequency of the sound wave. The period of a wave is equal to the each vertical line on graph i.e. 0.001 s.

Let f be the frequency of the sound wave. So,

f = 1/T

i.e.

$f=\dfrac{1}{0.001 }\\\\f=1000\ Hz$

So, the period and the frequency of the sound waves is 1 milliseond and 1000 Hz respectively.

6 0

3 years ago

5. A current of 3.00 A flows through a resistor when it is connected

viktelen [127]

I think it is D
Hope my answer help you?

7 0

3 years ago