A 6kg object has 350j of kinetic energy. find the velocity of the object?

Answers

Answer 1

Answer:
We have no information describing the direction in which
the object is moving, so we're in no position to discuss its
velocity.   ==> We have only speed to work with.

      Kinetic energy = (1/2) (mass) (speed²)

   (350 J) = (1/2) (6 kg) (speed²)

Divide each side by 3 kg : (350J / 3 kg) = (speed²)

Take the square root of each side: Speed = 10.8 m/s (rounded)

Units (for the curious/inquisitive):

[Energy] = [work] = [force] x [distance]

   = [mass-distance/time²] x [distance]

   = [ kg-meter / sec² ] x [ meter ]

   = [ kg-meter² / sec² ] = Joule

Energy / mass = Joule/kg = [ meter² / sec² ] = (speed²)

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What are minerals made of a single element called?

Answers

Minerals of a single element are called Native elements. These include gold, silver, copper, etc. They can be divided into three groups such as metals, semi-metals, and nonmetals. Hope this helped.

Which term defines the process of a wave bouncing off of a surface?a. reflection
b. refraction
c. destructive interference
d. constructive interference

Answers

the answer to that question is reflection

Some folded mountains result from the collision of continental plates.
a. True
b. False

Answers

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How many electrons make up a charge of 3.5kC?

Answers

21.8452851 * 10^21 e. Which is 21.845.285.100.000.000.000.000 electrons. A lot.

Well now, I don't know !
Let's figure it out.

The charge on one electron is 1.60 x 10⁻¹⁹ Coulomb .

To get 3,500 Coulombs of charge, you'd need to
go around and collect

   (3,500) / (1.60 x 10⁻¹⁹) electrons.

That's 2.19 x 10²² of the little fellas.

That's a big number. But what's REALLY amazing is the
mass and weight of that many electrons:

   Mass: 1.989 x 10⁻⁵ gram

   Weight: about 0.0000007 ounce !

That's not one electron. That's the whole 2.19 x 10²² uvvum
that it takes to hold 3,500 Coulombs of charge.

When the pitch of a sound rises, what is true for amplitude, wavlength, and frequency?

Answers

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The function of a capacitor in an electric circuit is to?A. measure the amount of current in the circuit.
B. increase circuit power
.C. allow current flow between its plates.
D. store electric charges.

Answers

Well let's see:

A). No. A capacitor doesn't measure anything.

B). No. The power delivered to the circuit is determined by
      the battery or power supply and all the things in
the circuit that dissipate energy. A capacitor doesn't
do any of these things.

C). No. If any current actually flows between its plates,
   the capacitor is shot and can't do its job, and
   must be replaced.

D). Yes. A capacitor stores charges on its plates, and
electrical energy in the field between its plates.

Answer:

D. Stores electric charges

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