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tiny-mole [99]
3 years ago
8

W=fd Solve for F Then it asks the same question but to solve next time for D

Physics
2 answers:
djyliett [7]3 years ago
6 0
W = fd   Divide both sides by d
\frac{w}{d} = f   Switch the sides to make it easier to read
f = \frac{w}{d}

w = fd   Divide both sides by f
\frac{w}{f} = d   Switch the sides to make it easier to read
d = \frac{w}{f}
Damm [24]3 years ago
3 0
Work=force*distance

Solve for force: simply rearrange the equation. Move distance over to isolate force to get
force= work/distance

solve for distance: rearrange equation again.
Move force over to isolate distance to get
Distance= work/force
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Answer:

C)

Explanation: In freefall motion object always has gravity as its acceleration.

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2 years ago
Which president is linked to the trickle-down theory of economics?
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Answer:

Ronald Regan

Explanation:

Ronald Regan is the president linked to the trickle-down theory of economics.

8 0
4 years ago
A. In the building there are 133 steps from the ground floor to the sixth floor.
faust18 [17]

(a) The work done by the person is 18.83465 kJ.

(b) The average power performed by the person during the walk is 51.4 W.

(c) The amount of food calories burnt is 4.5 Cal.

<h3>Work done by the person</h3>

The work done by the person is calculated as follows;

W = Fd

W = mgh

W = (89.2 x 9.8) x (0.162 x 133)

W = 18,834.65 J

W = 18.83465 kJ

<h3>Average power of the person</h3>

P = Fv

where;

  • v is velocity

v = (d)/t

v = (133 x 0.162)/(6 x 60   +  6)

v = (133 x 0.162)/(366)

v = 0.0588 m/s

P = (89.2 x 9.8) x 0.0588

P = 51.4 W

<h3>Amount of food calories burnt</h3>

4.1868 kJ = 1 Cal

18.83465 kJ = ?

= 4.5 Cal

Learn more about work done here: brainly.com/question/8119756

#SPJ1

7 0
2 years ago
In ptolemy’s earth-centered model for the solar system, venus always stays close to the sun in the sky and, because it always st
sp2606 [1]
Hey, can you state your question a little more clearly
6 0
3 years ago
At some instant and location the electric field associated with an electromagnetic wave in vacuum has the strength 96.5 V/m. Fin
prisoha [69]

Answer:

B = 32.17 x 10^-8 Tesla

u = 8.24 x 10^-8 J/m^3

P/A = 24.72 W/m^2

Explanation:

E = 96.5 V/m

velocity of light, c = 3 x 10^8 m/s

Let B be the magnetic field.

The relation between the electric field strength and the magnetic field strength is given by

B = E / c = 96.5 / (3 x 10^8) = 32.17 x 10^-8 Tesla

Let u be the energy density.

u = \frac{1}{2}\times \varepsilon _{0}E^{2}+\frac{1}{2\mu _{0}}B^{2}

u = \frac{1}{2}\times 8.854\times 10^{-12}\times 96.5\times 96.5+\frac{1}{2\times 4\times 3.14\times 10^{-7}}\times 32.17^{2}\times 10^{-16}

u = 8.24 x 10^-8 J/m^3

Let Power flow per unit area is

P/A = u x c = 8.24 x 10^-8 x 3 x 10^8 = 24.72 W/m^2

7 0
3 years ago
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