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djyliett [7]
3 years ago
15

how much time would it take for an airplane to reach its destination if it traveled at an average speed of 790 km/hr for a dista

nce
Physics
1 answer:
NeTakaya3 years ago
8 0
I think your question is incomplete because the distance between destination and departure point isn't given in the question

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If only one external force acts on a particle, does it necessarily change the particle's kinetic energy and velocity? (Select al
Rina8888 [55]

Answer:

Option 3 and 6

Explanation:

If the particle is under the action of only one external force, both its kinetic energy and the velocity must vary.

When the particle is exerted by an external force, then this external force tends to accelerate the particle.

When the particle accelerates, its velocity must vary for that acceleration to occur.

When the velocity of the particle changes then its Kinetic energy must vary with the velocity of the particle.

4 0
3 years ago
The reactants for a certain chemical reaction are shown. Cu(NO3)2 + NaOH → Which of the following shows the correct product or p
valentinak56 [21]

Answer : The products of this reaction are, Cu(OH)_2 and NaNO_3

Explanation :

First we have to write the balanced chemical reaction.

Cu(NO_3)_2+2NaOH\rightarrow Cu(OH)_2+2NaNO_3

In this reaction, 1 mole of copper nitrate react with the 2 moles of sodium hydroxide to give 1 mole of copper hydroxide and 2 moles of sodium nitrate.

This reaction is a double displacement reaction.

Double displacement reaction : A type of reaction in which a positive cation and a negative anion of two reactants react to exchange their places to form two new products.

The general representation of this reaction is,

XY+AB\rightarrow XB+AY

(X and A are the cations, Y and B are the anions)

Hence, the products of this reaction are, copper hydroxide,Cu(OH)_2 and sodium nitrate,NaNO_3

6 0
3 years ago
Name two examples of deposition.
Rashid [163]
The reverse of deposition is sublimation and hence sometimes deposition is called desublimation. One example of deposition is the process by which, in sub-freezing air, water vapor changes directly to ice without first becoming a liquid.
8 0
4 years ago
Read 2 more answers
​Determine usando ecuación de Bernoulli la Presión P1 necesaria para mantener la condición mostrada dentro del sistema mostrado
Amanda [17]

Answer:

PlROCA

Explanation:

6 0
3 years ago
Consider a spherical Gaussian surface of radius R centered at the origin. A charge Q is placed. inside the sphere. Where should
Elanso [62]
I think you forgot to give the options along with the question. I am answering the question based on my knowledge and research. "<span>The charge can be located anywhere, since flux does not depend on the position of the charge as long as it is inside the sphere" gives the answer to the question. I hope that this answer has come to your help.</span>
5 0
3 years ago
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