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3 years ago

The geese fly 23 m/s to the south when they migrate for the winter. Identify if this example is speed or velocity.

Physics

1 answer:

kari74 [83]3 years ago

7 0

Answer:

Its velocity.

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a body of a mass 1kg suspended from a spring is found to stretch the spring by 10cm. (A) what is the spring constant? what is pe

Nikitich [7]

Answer:

(A) The spring constant is 98 N/m.

(B) The period of oscillation is 0.635 s.

Explanation:

Given:

Mass of the body is, $m=1\ kg$

Extension length of the spring is, $x=10\ cm=0.1\ m$

Now, let 'k' be the spring constant.

The force acting on the body is due to gravity only and is equal to its weight.

So, weight of the body is given as:

$F_g=mg\\F_g=1\times 9.8\\F_g=9.8\ N$

Now, we know that for a spring-mass system, the net force acting on the body is equal to the product of the spring constant and extension length. Therefore,

$F_g=kx\\9.8=k(0.1)\\k=\frac{9.8}{0.1}=98\ N/m$

Hence, the spring constant is 98 N/m.

(B)

Period of oscillation of a body of spring-mass system in SHM is given as:

$T=2\pi\sqrt{\frac{m}{k}}$

Plug in the given values and solve for period 'T'. This gives,

$T=2\pi\sqrt{\frac{1}{98}}\\T=2\pi\times 0.101\\T=0.635\ s$

Therefore, the period of oscillation is 0.635 s.

5 0

4 years ago

Compare and contrast sodium and fluorine? Compare and contrast oxygen and hydrogen?

igomit [66]

sodium is found in group one element, but flourine members of halogens . oxygen found in group six element ,but hydrogen found in group 1( according to periodic table)

6 0

4 years ago

No, this question isn't abt language arts, mathematics. Im asking u this How are u doing? c:

nekit [7.7K]

Answer:

horrible, but how about you?

Explanation:

3 0

3 years ago

What is the lewis dot structure of Na+

SpyIntel [72]

The dots in the Lewis dot structure symbolize an atom's elements.
Since Na^+ is a positive ion (cation) with a charge of +1, it indicates that it has lost an electron. 
Since Na had one electron, to begin with, and it is now lost, Na^+ will have no dots. However, the charge must still be written as a superscript. 
Therefore, the Lewis dot structure for Na^+ is just Na^[+]

5 0

3 years ago

Which type of reaction is shown in this energy diagram?

valentinak56 [21]

Answer:

Option C

Explanation:

The graph shows endothermic reaction because the reactants are lower in energy and the products are higher is energy. Endothermic reactions absorb energy having products with higher energy.

5 0

4 years ago

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