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alex41 [277]
3 years ago
9

Compare and contrast the theories about the origin of the universe

Physics
1 answer:
Vaselesa [24]3 years ago
7 0

Answer:

The best-supported theory of our universe's origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient explosive force.

Explanation:

hope this helps tho i don't quite know what you mean

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Consider the circular motion of a positively charged particle in the plane of this paper, due to a constant magnetic field B~ wh
barxatty [35]

Answer:

the direction of the particle is anti clockwise.

Explanation:

We know that;

- It's a positive particle

- That it's moving in a circle in a magnetic field

- We know the direction of the magnetic field

We can deduce the direction of the magnetic force because it is moving in a circle.

So the force is pointing to the centre of the circle and that's what is keeping it in that circular motion.

Since we know the direction of the magnetic field and force, we can use right hand rule to figure out the direction of the particle since the particle is positive.

Using right hand rule, the thumb which is the particle is pointing anticlockwise. So the direction of the particle is anti clockwise.

3 0
3 years ago
The amount of kinetic energy an object has depends on which feature of the object?
-BARSIC- [3]

Answer: its motion  

Explanation: Potential energy is stored energy when an object is without motion, kinetic energy is the energy when a object is in motion.

5 0
3 years ago
Read 2 more answers
? Is a quantity that measure the effects of a force acting over a distance.
faust18 [17]
Work is a quantity that measures the effects of a force acting over a distance.
6 0
3 years ago
Emeka carried out a reaction in which a gas was given off. He followed the progress of the reaction by measuring the mass of the
pickupchik [31]

Answer:

17.5

or

1.1 g/min

I know it's one of these, try getting a second opinion

6 0
3 years ago
A crate filled with delicious junk food rests on a horizontal floor. Only gravity and the support force of the floor act on it,
stealth61 [152]

The words "... as shown ..." tell us that there's a picture that goes along
with this question, and you decided not to share it.  That's sad and
disappointing, but I think the question can be answered without seeing
the picture.

The net force on the crate is zero.  Evidence for this is that fact that
the crate is just sitting there.  If the net force on an object is not zero,
then the object is accelerating ... it's either speeding up, slowing down,
or its the direction of its motion is changing.  If none of these things is
happening, then the net force on the object must be zero.

4 0
3 years ago
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