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3 years ago

Average velocity is different than average speed because calculating average velocity involves ?

Physics

2 answers:

Leona [35]3 years ago

8 0

Answer:

displacement

Explanation:

edgenuity

VashaNatasha [74]3 years ago

6 0

direction ................................................................

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Does mercury have more protons and electrons than tin

Klio2033 [76]

Yes it does.
On the periodic table, tin is #50 and Mercury is # 80.

3 0

2 years ago

The amount of energy that remains after the amount of energy used for respiration is subtracted from the total is called

lawyer [7]

Answer:Gibb's free energy

Explanation:

The Free energy change describes the amount of energy that is available in any system to do work. It is often designated with the symbol G

4 0

3 years ago

Find the magnitude of the sum

shusha [124]

Answer:

$\displaystyle |\vec{v_1}+\vec{v_2}|=4.15m$

Explanation:

<u>Sum of Vectors in the Plane</u>

Given two vectors

$\displaystyle \vec{v_1}\ ,\ \vec{v_2}$

They can be expressed in their rectangular components as

$\displaystyle \vec{v_1}=$

$\displaystyle \vec{v_2}=$

The sum of both vectors can be done by adding individually its components

$\displaystyle \vec{v_1}+\vec{v_2}=$

If the vectors are given as a magnitude and an angle $(M\ ,\ \theta )$ , each component can be found as

$\displaystyle \vec{v_1}=$

$\displaystyle \vec{v_2}=$

The first vector has a magnitude of 3.14 m and an angle of 30°, so

$\displaystyle \vec{v_1}=$

The second vector has a magnitude of 2.71 m and an angle of -60°, so

$\displaystyle \vec{v_2}=$

The sum of the vectors is

$\displaystyle \vec{v_1}+\vec{v_2}=$

$\displaystyle \vec{v_1}-\vec{v_2}=$

Finally, we compute the magnitude of the sum

$\displaystyle |\vec{v_1}+\vec{v_2}|=\sqrt{(4.08)^2+(-0.78)^2}$

$\displaystyle |\vec{v_1}+\vec{v_2}|=\sqrt{17.25}$

$\displaystyle |\vec{v_1}+\vec{v_2}|=4.15m$

3 0

2 years ago

Which of the following is not dimensionally correct?<br> E=mc2 B. vf=vi+at<br> S=vt2 D. S=1/2 at2

Elodia [21]

Answer:

s=vt2 just simplify all into metric units first

5 0

2 years ago

Consider your favorite radio station. AM radio has a frequency between 535 kilohertz and 1605 kilohertz, and FM radio has a freq

zzz [600]

Answer

The wavelength for 550 kHz signal is

$\lambda = \dfrac{3.00 \times 10^8}{550\times 10^3}$

λ = 545.45 m

The wavelength for 1600 kHz signal is

$\lambda = \dfrac{3.00 \times 10^8}{1600\times 10^3}$

λ = 187.5 m

The wavelength for 88 MHz signal is

$\lambda = \dfrac{3.00 \times 10^8}{88\times 10^6}$

λ = 3.41 m

The wavelength for 108 MHz signal is

$\lambda = \dfrac{3.00 \times 10^8}{108\times 10^6}$

λ = 2.78 m

7 0

2 years ago