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3 years ago

I need help answering this question in the photo (middle)

Physics

1 answer:

GalinKa [24]3 years ago

3 0

I believe it is because of weight if Timmy is larger and bigger than Maria that would mean he would stop slower just because of his bodyweight pushing on the back of the skateboard while Maria is all those skinny and she doesn’t have as much weight as she can go farther

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The difference in emf between the primary coil of a transformer and the secondary coil is directly related to the relative numbe

kirill115 [55]

True.

The more the coils either at the Primary or Secondary coils, the higher the Primary or Secondary Emf. The lower the coils at the Primary or Secondary coils, the lower the EMF at the Primary or Secondary.

Hence there is a direct relationship.

8 0

4 years ago

One statement of the first law of thermodynamics is that:___________.

blagie [28]

Answer:

a. the amount of work done on a system is dependent of pathway

Explanation:

The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system.

ΔU = Q - W

Where;

Q, the net heat transfer into the system depends on the pathway

W, the net work done by the system also depends on the pathway

But, ΔU, the change in internal energy is independent of pathway

Therefore, the correct option is "A"

a. the amount of work done on a system is dependent of pathway

6 0

3 years ago

You decide to visit Santa Claus at the north pole to put in a good word about your splendid behavior throughout the year. While

ANTONII [103]

To solve this problem it is necessary to apply the concepts related to the Rotational Force described from the equilibrium and Newton's second law.

When there is equilibrium, the Force generated by the tension is equivalent to the Force of the Weight. However in rotation, the Weight must be equivalent to the Centrifugal Force and the tension, in other words:

$W = F_T + m\omega^2r_E$

Where

$\omega = \frac{2\pi}{T} \rightarrow$ Angular velocity is equal to the Period, at this case Earth's period

$r_E = 6.371*10^6m \rightarrow$ Radius of the Earth

m = mass

$F_T$ = Force of Tension

$W = mg \rightarrow$ Newton's second law

Replacing and re-arrange to find the Tension we have,

$F_T = W- \frac{W}{g} (\frac{2\pi}{T})^2r_E$

$F_T = W(1-(\frac{2\pi}{T})^2\frac{r_E}{g})$

$F_T = (505)(1-(\frac{2\pi}{24hours})^2\frac{6.371*10^6}{9.8})$

$F_T = (505)(1-(\frac{2\pi}{24hours(\frac{3600s}{1hour})})^2\frac{6.371*10^6}{9.8})$

$F_T = (505)(1-(\frac{2\pi}{86400})^2\frac{6.371*10^6}{9.8})$

$F_T = 503.26N$

Therefore when Sneezy is on the equator he is in a circular orbit with a Force of tension of 503.26N

7 0

3 years ago

What are conducting patterns?

Arturiano [62]

Answer:

A conducting pattern is a pattern in which your dominant hand follows in order to establish beats and tempo to the choir. Conductors that are directing large orchestras and choirs will often times use a baton so that the entire group can clearly see the motions.

Explanation:

4 0

3 years ago

the diagram below represents the orbits of earth, comet temple-tuttle, and planet x, another planet in out solar system. arrows

mart [117]

Answer:

the most elliptical orbit is that of COMETA

Explanation:

The eccentricity of a curve in defined as the ratio between lacia to the focus, called c and the value of the axis greater than

ε = c / a

if we use Pythagoras' theorem

c = $\sqrt{a^2 - b^2}$

substituting

ε = $\sqrt{1 - (b/a)^2 }$

if ε = 0 we have a circumference

In the diagram presented the orbit of the comet is an ellipse a> b

ε= $\sqrt{1- x} \\ x = (\frac{b}{a} )^2$

if we expand in series

ε = 1 - x/2

ε= $1 - \frac{1}{2} \ (\frac{ b}{a} )^2$

if we neglect the non-linear terms

ε = 1

Earth's orbit is a small ellipse

b / a = 149 10⁶ / 151 10⁶

b / a = 0.98675

ε = $\sqrt{1- 0.98675^2}$

ε = 0.16

a very small ellipse

Planet X, despite not having data, it seems that the sun is in the scepter of the orbit, so b = a

therefore both the semi-axes of the curve

e = a / b

Consequently, the most elliptical orbit is that of COMETA.

5 0

3 years ago