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3 years ago

Which of the following definitions BEST defines a satellite?

Physics

1 answer:

Temka [501]3 years ago

5 0

Answer:

D, any object that revolves around another object.

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After each charging, a battery is able to hold only 99% of the charge from the previous charging. The battery was used for 5 hou

Aloiza [94]

Answer:

500 hours

Explanation:

The sum of total hours over its lifetime will be given by

$T=\frac {T_o}{1-r}$

Where T is total time, r is rate in decimal and To is the original charge hours. Substituting the original charge hours with 5 hours and rate as 0.99 then the time will be

$T=\frac {5\ hours}{1-0.88}=500\ hours$

Therefore, the time is equivalent to 500 hours

7 0

3 years ago

A square wave has amplitude 0 V for the low voltage and 4 V for the high voltage. Calculate the average voltage by integrating o

Margarita [4]

Answer:

V_{average} = $\frac{1}{2} V_o$ , V_{average} = 2 V

Explanation:

he average or effective voltage of a wave is the value of the wave in a period

V_average = ∫ V dt

in this case the given volage is a square wave that can be described by the function

V (t) = $\left \{ {{V=V_o \ \ \ t< \tau /2} \atop {V=0 \ \ \ \ t> \tau /2 } } \right.$

to substitute in the equation let us separate the into two pairs

V_average = $\int\limits^{1/2}_0 {V_o} \, dt + \int\limits^1_{1/2} {0} \, dt$

V_average = $V_o \ \int\limits^{1/2}_0 {} \, dt$

V_{average} = $\frac{1}{2} V_o$

we evaluate V₀ = 4 V

V_{average} = 4 / 2)

V_{average} = 2 V

6 0

3 years ago

A 75 kg skydiver can be modeled as a rectangular "box" with dimensions 20 cm * 40 cm * 180 cm. what is his terminal speed if he

Zina [86]

Terminal speed=136.7 m/s

the formula for the terminal speed is given by :

V= $\sqrt{\frac{2 mg}{\rho a C}}$

m= mass=75 kg

a= area=0.2 x 0.4=0.08 m²

ρ= density of air=1.23 kg/m³

C= drag constant =0.8

so V= $\sqrt{\frac{2 *75*9.8}{1.23*0.08*0.8}}$

v= 136.7 m/s

4 0

3 years ago

List six aspect of wellness discussed in class

julia-pushkina [17]

The correct answer for your question since you didn't post the choices i believe are Physical, Emotional, spiritual sometimes, intellectual, environmental, and lastly, social.

I hope this is correct and hope this rings a bell?

3 0

3 years ago

Electrical resistance is a measure of resistance to the flow of _?____

zubka84 [21]

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω). Ohms are named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current and resistance.

Hope this helps!!!!

8 0

3 years ago

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