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gtnhenbr [62]
3 years ago
11

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.

Physics
1 answer:
vekshin13 years ago
6 0

Answer:

The answer is 500

Explanation:

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A(n) ____________ stretch is one done where antagonist muscles are used to stretch the muscles. But the _____________ stretch is
aliina [53]

Answer: Dynamic - Static Flexibility

Explanation:

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3 years ago
The plates of a parallel-plate capacitor are maintained with a constant voltage by a battery as they are pushed together, withou
Dominik [7]

Answer:

The amount of charge on the plates increases during this process

Explanation:

In order to maintain a constant voltage across the plates, pushing the plates closer will increase the charge on the plate

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3 years ago
Way back in the ­­­­­­­­­­­­_____________, there lived a man named Isaac Newton who really loved physics.
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3 years ago
What is the electric field at a location b → = <-0.5, -0.4, 0> m, due to a particle with charge +2 nC located at the origi
Naddika [18.5K]

Answer:

E = \frac{8.99 x10^{9} \frac{Nm^2}{C^2} * 2x10^{-9} C}{(0.64m)^2} =43.85N

Explanation:

For this case we assume that we want to find the electrical field at the point P as we can see on the figure attached.

The electrical field wormula is given by:

E = \frac{K Q}{d^2}

Where r is the distance from the point and the charge. On this case we can use the Pythagoras theorem and we got:

d^2 = (-0.5m)^2 +(-0.4)^2 = 0.41m^2

d =\sqrt{0.41}= 0.64m

And now we can replace into the formula since we know that Q = 2nC= 2x10^{-9}C and K = 8.99 x10^{9} \frac{Nm^2}{C^2}, and we got:

E = \frac{8.99 x10^{9} \frac{Nm^2}{C^2} * 2x10^{-9} C}{(0.64m)^2} =43.85N

4 0
3 years ago
Identify the physical property of a material that plays an important role in determining if the collision is elastic or not base
Nutka1998 [239]

Answer:

They are spherical and hollow (not compact or dense)

Explanation:

An elastic collision is a form of a collision where kinetic energy and momentum are conserved in the process. When there is zero loss of kinetic energy and momentum, it is called a perfectly elastic collision.

This form of collision is observed in atmospheric gases and colliding balls which happens to be spherical and hollow.

7 0
3 years ago
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