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fgiga [73]
3 years ago
10

2.3 The motion of an object is accelerated

Physics
1 answer:
alekssr [168]3 years ago
6 0

Answer:

The motion of an object is accelerated when its speed increases.

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A 150 kg object takes 90 seconds to travel a 2500 meter straight path. It begins the trip traveling 120 meters per second and de
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The acceleration is -1.111 m/s²

Explanation:

In this case acceleration is calculated as change in velocity divided by time.

Change in velocity is 20m/s-120 m/s = -100 m/s

Time is 1.5 minutes------change it to seconds by multiplying 1.5 by 60 seconds

Acceleration will be : -100 m/s / (1.5*60) = -1.111 m/s²

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4 years ago
A cube with sides of area 18 cm^2 contains a 6.0 nanoCoulomb charge. Find the flux of the electric field through the surface of
Vanyuwa [196]

Answer:

The flux of the electric field  is 677.6 Nm²/C

Explanation:

Given that,

Area = 18 cm²

Charge = 6.0 nC

We need to calculate the flux of the electric field

Using Gauss's law

\phi=\dfrac{q}{\epsilon_{0}}

Where, q = charge

\epsilon_{0} =permittivity of free space

Put the value into the formula

\phi=\dfrac{6.0\times10^{-9}}{8.854\times10^{-12}}

\phi=677.6\ Nm^2/C

Hence, The flux of the electric field  is 677.6 Nm²/C.

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3 years ago
Which of the following is an environmental consequence of nuclear energy?
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It is letter b which is Global Warming
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3 years ago
When we double the distance between a source of light and the
FinnZ [79.3K]

When we double the distance between a source of light and the

surface on which it falls, the amount of illumination on the surface

decreases to <em>one fourth (1/4, 0.25))</em> of the original illumination.

7 0
4 years ago
How many neutrons does element X have if its atomic number is 36 and its mass number is 74?
kari74 [83]
The atomic number Z of an element is the number of protons it contains (and in an atom it is equal to the number of electrons). The mass number M is close to the mass of one mol of the substance but it is defined as the number of protons and neutrons in the nucleus of the atom; there, the main mass of the atom is contained. Hence, N=M-Z=74-36=38(since M counts both protons and neutrons while Z only protons). Thus, it has 38 neutrons.
3 0
4 years ago
Read 2 more answers
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