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3 years ago

The index of refraction for flint glass is 1.5. This means that

Physics

2 answers:

Alexxx [7]3 years ago

7 0

Answer:

Explanation:

This means that the ratio of the speed of the incident beam of light in a vacuum to the speed of light in the glass is 1.5

Harlamova29_29 [7]3 years ago

5 0

This means that the speed of light in vacuum is 1.5 times the speed of light in flint glass.

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10. A change in

pogonyaev

Answer:

d velocity will be the one according to me

6 0

3 years ago

A future use of space stations may be to provide hospitals for severely burned persons. It is very painful for a badly burned pe

inessss [21]

Answer:

1.5min

Explanation:

To solve the problem it is necessary to take into account the concepts related to Period and Centripetal Acceleration.

By definition centripetal acceleration is given by

$a_c = \frac{V^2}{r}$

Where,

V = Tangencial velocity

r = radius

With our values we know that

$a_c = \frac{V^2}{r}$

$\frac{V^2}{r} = \frac{1}{10}g$

Therefore solving to find V, we have:

$V = \sqrt{\frac{1}{10}g*r}$

$V = \sqrt{\frac{9.81*200}{10}}$

$V = 14m/s$

For definition we know that the Time to complete are revolution is given by

$t = \frac{Perimeter}{Speed}$

$t = \frac{2\pi R}{V}$

$t = \frac{2\pi * 200}{14}$

$t = 1.5min$

6 0

3 years ago

A force F making an angle ø with the horizontal is acting on an object resting on the table. Which statement is true for the mot

Viktor [21]

The statement that is true for the motion of sliding the object on the table is : its independent of all forces acting on the object

The only thing that it depend on is the forces acting along both the x-axis and the y-axis.

hope this helps

7 0

4 years ago

Two insulated wires, each 2.64 m long, are taped together to form a two-wire unit that is 2.64 m long. One wire carries a curren

nikklg [1K]

Answer:

$4.77\ \text{A}$

Explanation:

F = Magnetic force = 4.11 N

$I_n$ = Net current

$I_2$ = Current in one of the wires = 7.68 A

B = Magnetic field = 0.59 T

$\theta$ = Angle between current and magnetic field = $65^{\circ}$

$l$ = Length of wires = 2.64 m

$I$ = Current in the other wire

Magnetic force is given by

$F=I_nlB\sin\theta\\\Rightarrow I_n=\dfrac{F}{lB\sin\theta}\\\Rightarrow I_n=\dfrac{4.11}{2.64\times 0.59 \sin65^{\circ}}\\\Rightarrow I_n=2.91\ \text{A}$

Net current is given by

$I_n=I_2-I\\\Rightarrow I=I_2-I_n\\\Rightarrow I=7.68-2.91\\\Rightarrow I=4.77\ \text{A}$

The current I is $4.77\ \text{A}$ .

8 0

3 years ago

Anthony walks to the pizza place for lunch. He walks 1km east, and then 1 km east again. What distance did he cover? What was hi

Nady [450]

Answer:

Distance covered by Anthony is 3 km. Don't know about displacement though.

3 0

3 years ago