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kumpel [21]
4 years ago
14

Does any one know this??? Physics

Physics
1 answer:
Anna11 [10]4 years ago
8 0
Displacement is just the distance between the start point and the end point. Just subtract the numbers.
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A toy cannon tosses a rubber ball straight upward. A motion sensor measures the speed of the ball as it leaves the cannon. Using
mezya [45]

Answer:

With this information is not possible to calculate the mass.

Explanation:

This is a characteristic problem of energy conservation, where kinetic energy becomes potential energy. For this particular problem, we have the initial speed as input data. The moment the ball comes out of the cannon we have the maximum kinetic energy, as the ball goes up the ball will gain more potential energy as the ball loses kinetic energy, until the moment the ball reaches the maximum height. At the maximum height point, the ball will have its maximum potential energy while its kinetic energy is zero. In other words, all the kinetic energy that was, in the beginning, was transformed into potential energy.

E_{p}=E_{k}\\m*g*h=0.5*m*v^2

In the above equation the masses are canceled and we can determine the maximum height, by means of the initial speed.

h=\frac{0.5*v^2}{g} [m]

But the mass cannot be determined, since it would be necessary to know the value of the energy, in order to determine the value of the mass.

3 0
3 years ago
Is a 10 year old supposed to be doing algebra
forsale [732]
If he feels like, is interested in it, and is able to grasp it, then why not ? Why not indeed ?
3 0
3 years ago
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In an exothermic reaction, the products have _____.
Sergio039 [100]

Answer: In an exothermic reaction, the products have  less energy than the reactants.

Explanation: There are two types of reactions:

1. Endothermic reactions: These are the reactions in which energy is required in the reaction. The energy of the products are more than the energy of the reactants.

2. Exothermic reactions: These are the reactions in which energy is released in the reaction. The energy of the products is less than the energy of the reactants.

Hence, in an exothermic reaction, the products have  less energy than the reactants.

8 0
4 years ago
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How big is a wifi pulse signal coming from your router???
Brilliant_brown [7]

Answer:

About 15

Explanation:

7 0
3 years ago
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When is it necessary to use relativistic quantum mechanics?
Ugo [173]

Answer:

To see objects smaller than microscopic limits

Explanation:

The theory of Relativistic Quantum mechanics can be applied to particles that are massive and propagates at all velocities even those which are comparable to the speed of light and is capable to accommodate particles that are mass less. This theory find its application in atomic physics, high energy physics, etc.

It is necessary to use relativistic quantum mechanics when it is desired to see the objects that are too small to be seen with the help of microscope.

4 0
3 years ago
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