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VashaNatasha [74]
3 years ago
7

Physics I’ll give brainiest! :)

Physics
2 answers:
julsineya [31]3 years ago
7 0

Isotope is each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.

It means it has same atomic number but different mass number.

Monica [59]3 years ago
5 0

isotopes are the same element, but have different numbers of neutrons (but still have the same number of electrons and protons), hence have a different mass number.

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A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s?
natulia [17]
A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s?


A.17 s


B.0.058 s


C.0.25 s


D.2.0 s
7 0
3 years ago
Newton's Law of Universal Gravitation states that the force F between two masses, m1 and m2, is given below, where G is a consta
Hitman42 [59]

Answer:

Explanation:

According to newton's law , force between mass m₁ and m₂ at distance x is given by the following expression

F = G m₁m₂ / x²

differentiating F with respect to x , we have

dF /  d x =  ₋2G m₁m₂ / x³ .

Rate of reduction  of force ∝  1 / x³

5 0
3 years ago
Light travels through a liquid at 2.25e8 m/s. What is the index of refraction of the liquid?
Pavlova-9 [17]

Answer:

The index of refraction of the liquid is n = 1.33 equivalent to that of water

Explanation:

Solution:-

- The index of refraction of light in a medium ( n ) determines the degree of "bending" of light in that medium.

- The index of refraction is material property and proportional to density of the material.

- The denser the material the slower the light will move through associated with considerable diffraction angles.

- The lighter the material the faster the light pass through the material without being diffracted as much.

- So, in the other words index of refraction can be expressed as how fast or slow light passes through a medium.

- The reference of comparison of how fast or slow the light is the value of c = 3.0*10^8 m/s i.e speed of light in vacuum or also assumed to be the case for air.

- so we can mathematically express the index of refraction as a ratio of light speed in the material specified and speed of light.

- The light passes through a liquid with speed v = 2.25*10^8 m/s :

                         n = c / v\\\\n = \frac{ 3*10^8 }{2.25*10^8} \\\\n = 1.33

- The index of refraction of the liquid is n = 1.33 equivalent to that of water.    

         

8 0
3 years ago
Read 2 more answers
A square current loop 4.9 cm on each side carries a 480 mA current. The loop is in a 0.60 T uniform magnetic field. The axis of
Stolb23 [73]

Answer: 0.000346 Nm

Explanation:

T = u X B

u = i x A = magnetic moment

T = i x A x B x sin(30)

T = 0..48 x 0.049^2 x 0.6 x 0.5 = 0.000346 Nm

6 0
4 years ago
How are electromagnetic waves used in bar-code scanners?
Natali5045456 [20]

Answer:

A barcode reader (or barcode scanner) is an optical scanner that can read printed barcodes, decode the data contained in the barcode and send the data to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating for optical impulses into electrical signals.

Explanation:

A barcode reader (or barcode scanner) is an optical scanner that can read printed barcodes, decode the data contained in the barcode and send the data to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating for optical impulses into electrical signals.

3 0
3 years ago
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