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ivann1987 [24]
3 years ago
15

What is second law of netwons​

Physics
2 answers:
yuradex [85]3 years ago
7 0

Explanation:

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate.

seropon [69]3 years ago
3 0

Answer:

Explanation:

Newtons second law of motion is,

                       F  =   ma

or force is equal to mass times acceleration.

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At what height does a 1000-kg mass have potential energy of 1J relative to the ground?
Dvinal [7]

Answer:

0.0001 m

Explanation:

Given

M=1000 KG

PE=1 J

G=9.8 m/s

H=?

Formula

PE = MGH

H= PE/MG

H=1/1000x9.8

H= 1/9800

or 0.00010204

7 0
2 years ago
If the electric potential in a region is given by v(x)=7/x2 the x component of the electric field in that region is
lions [1.4K]

Hi there!

Recall that:
\Delta V = -\int\limits^a_b {E \cdot } \, dx

Given an electric field, the potential difference can be solved by using integration. Similarly:
E = -\frac{dV}{dx}

We can differentiate the electric potential equation to solve for the electric field.

Use the power rule:
\frac{dy}{dx} x^n = nx^{n - 1}

Differentiate the given equation.

-\frac{dV}{dx}\frac{7}{x^2} =- \frac{dV}{dx}7x^{-2} = -(-14x^{-3}) = \frac{14}{x^3}

Or:
\boxed{E(x) = \frac{14}{x^3}}

6 0
2 years ago
The last main subatomic particle to be discovered was the _____.
kati45 [8]

<span>The last main subatomic particle to be discovered was the antihelium-4.  It was discovered on 2011 and it is measured and produces through the STAR detector.  The Antihelium-4 was discovered accidentally when an experiment was conducted.  It is also the first particle that was discovered by the means of experiment.</span>

7 0
3 years ago
An empty jar is pushed open-side down into water so that trapped air cannot escape. As it is pushed deeper, the buoyant force on
Pavlova-9 [17]

As it is pushed deeper, the buoyant force on the jar will decrease. The correct option is B

<h3>What is buoyant force ?</h3>

The upward force applied to an object that is fully or partially submerged in a fluid is known as the buoyant force. Upthrust is another name for this upward thrust. A body submerged partially or completely in a fluid appears to shed weight, or to be lighter, due to the buoyant force.

The fluid under which an object is submerged exerts pressure, which is what generates the buoyancy force. Because a fluid's pressure rises with depth, the buoyancy force is always upward.

To know more about buoyant force you may visit the link:

brainly.com/question/21990136

#SPJ4

3 0
1 year ago
Why do you not come to thermal equilibrium on a cold day
Tju [1.3M]

Two physical systems are in thermal equilibrium if no heat flows between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics. A system is said to be in thermal equilibrium with itself if the temperature within the system is spatially and temporally uniform.

Systems in thermodynamic equilibrium are always in thermal equilibrium, but the converse is not always true. If the connection between the systems allows transfer of energy as heat but does not allow transfer of matter or transfer of energy as work, the two systems may reach thermal equilibrium without reaching thermodynamic equilibrium.

3 0
3 years ago
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