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Natalka [10]
2 years ago
11

All moving objects don’t have momentum A. True B. False

Physics
2 answers:
mestny [16]2 years ago
4 0

Answer:

No

Explanation:

Some objects gain momentum.

GREYUIT [131]2 years ago
4 0
  • All moving objects have momentum.
  • We know, momentum = mass × velocity
  • So, when an object is moving, it has velocity.
  • So, there is momentum.

<u>Answer</u><u>:</u>

<u>B.</u><u> </u><u>False</u>

Hope you could understand.

If you have any query, feel free to ask.

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Masteriza [31]

Answer:

An electron is a lepton

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3 years ago
A stone is thrown vertically upwards with an initial velocity 20m/s. Find the maximum height it reaches and the time taken by it
Colt1911 [192]

Answer:

20metere

  1. Y=VOYYT-1/2gt^2
  2. H=20m/s*2s-1/2*10m/s^2(2s)^
  3. H=40m-1/2*10 4s^2
  4. 40m-20
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8 0
2 years ago
A fish scale, consisting of a spring with spring constant k=200N/m, is hung vertically from the ceiling. A 2.6 kg fish is attach
Olegator [25]

Answer:

Explanation:

The fish is initially at rest and it is also at rest when the spring is fully stretched at the maximum distance.

Change in gravity potential energy = change in spring potential energy

mgh = 1/2kh^2

Assume gravity constant g is 10m/s^2

2.6*10*h = 1/2*200*h^2

100h^2 - 26h = 0

2h(50h - 13) = 0

h = 0 or h = 13/50 = 0.65m

h = 0 is before the spring is stretched

So the maximum distance is 0.65m.

3 0
2 years ago
Read 2 more answers
The Hall effect can be used to calculate the charge-carrier number density in a conductor. A conductor carrying current of 2.0 A
marysya [2.9K]

Answer:

option D

Explanation:

given,

A conductor is carrying current = 2.0 A is 0.5 mm thick

Hall voltage = 4.5 x 10-6 V

uniform magnetic field  =  1.2 T

density of the charge = n =?

hall voltage =V_h =\dfrac{i\ B}{n\ e\ L}

n = \dfrac{i\ B}{V\ e\ L}

n = \dfrac{2 \times 1.2 }{4.5 \times 10^{-6}\times 1.6 \times 10^{-19} \times 0.5 \times 10^{-3}}

n = 6.67 × 10²⁷ charges/m

hence the correct answer is option D

7 0
3 years ago
Ayan warms some hot chocolate in a microwave oven. Which reasoning explains how the particles that make up the hot chocolate dif
valkas [14]

Answer:

They move farther apart

Explanation:

When objects heat up they expand for example heating up a balloon makes it expand

4 0
3 years ago
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