<h3>13.</h3>
The relationship between power, voltage, and resistance can be expressed as ...
P = V²/R
Solving for resistance, you find ...
R = V²/P
Filling in the given values, you get ...
R = (120 V)²/(360 W) = 40.0 Ω
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<h3>14.</h3>
⇒ The maximum power the device can dissipate without overheating.
- - - -
In practice, the power rating is chosen to meet several requirements, including legal, liability, reliability, life expectancy, and others. For components, there tend to be tradeoffs between power dissipation and reliability. (Higher reliability parts are given a lower power rating even though the process by which they are made is unchanged.) For appliances, there may be legal requirements involving wiring and insurance and fire protection.
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<h3>15.</h3>
The voltage divider formula is ...
V₁ = V₀×(R₂/(R₁+R₂))
where R₁ is the series resistor and R₂ is the resistor across which the voltage is being measured. V₀ is the voltage applied across the two resistances.
Filling in your numbers, you get
V₁ = 25 V × (7.5/(5+7.5)) = 15 V
That looks like photosynthesis to me and I think that should be an endothermic reaction because it requires energy.
The change in the kinetic energy of the monster truck during the time is 507500 J and the right option is B). 507500
<h3>What is kinetic energy?</h3>
Kinetic energy is the energy of a body due to its motion.
To calculate the increase in the kinetic energy of the monster truck, we use the formula below.
Formula:
- ΔK.E = m(v²-u²)/2............. Equation 1
Where:
- ΔK.E = Increase in kinetic energy of the monster truck
- m = mass of the monster truck
- v = final velocity of the monster truck
- u = initial velocity of the monster truck.
From the question,
Given:
- m = 5000 kg
- v = 18 m/s
- u = 11 m/s.
Substitute these values into equation 1
- ΔK.E = 5000(18²-11²)/2
- ΔK.E = 2500(324-121)
- ΔK.E = 2500(203
- ΔK.E = 507500 J
Hence, The increase in the kinetic energy of the monster truck during the time is 507500 J and the right option is B). 507500.
Learn more about kinetic energy here: brainly.com/question/25959744
Explanation:
Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. ... Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.
The continental crust is by far the older of the two types of crust.
Hope this helps you out ; )
Answer and Explanation:
The distinction between Endangered species and Extict species is Given as under:
Endangered Species:
Endangered species are categorized as those species of flora and fauna which are on the verge of extinction if not provided timely protection in order to save them from getting extinct.
Some of the endangered species are African Penguin, Bengal Tiger, Blue Whale, etc
Extinct Species:
Those species of Flora and Fauna which have vanished completely or either from the wild i.e., that individuals of that species are not alive any more and have completely disappear from the earth.
In practice, if a species is not seen for over a period of 50 years it is considered to be extinct.
Some of the extinct species are Dodo, Passenger Pigeon, Great Aulk, etc.
