Answer:
1/2 M V^2 = .1 M g H where 10% of PE goes into KE
V^2 = .2 g H = .2 * 9.8 * (2100 - 1600) = 980 m^2 / s^2
V = 31.1 m/s increase in speed during descent
1 km / hr = 1000 m / 3600 sec = .278 m/s
V = 31.1 m/s / (.278 m/s / km /hr)= 112 km/hr
Answer:
N= 238 turns
Explanation:
The induced Emf that goes through a solenoid can be calculated using the below formula;
Where ξ=induced Emf
L= self inductance
I= current
ξ= L|dⁱ/dt|
Making L which is the self inductance subject of formula we have
L=ξ/[|dⁱ|*|dt|]
The current here is changing at the rate of
.0260 A/s
L=NΦB/i
N=ξ/Φ|di|*|dt|
Magnitude of the induced Emf given= 12.6mV then if we convert to volt we have 12.6×10⁻³ V
The current I = 1.40A
Magnitude flux through the flux=/0.00285 Wb
Then if we substitute all this Value to equation above we have
N=(12.6×10⁻³ V×1.40A)/(0.00285 Wb×0.0260 A/s)
N=238turn
Therefore, there are 238turns in the solenoid
If the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspeed will Increase and true altitude will increase.
<h3>What is Altitude?</h3>
This refers to the vertical elevation of a body and is the measurement of the height above the sea or ground level. An airplane's altitude is directly proportional to the airspeed as long as the power is constant.
This means that increase in airspeed will lead to an increase in altitude and vie versa. This is the reason why as it runs fast, it can be observed that it begins to elevate.
Read more about Altitude here brainly.com/question/1159693
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167•F which is c
Tell me my wrong from right
Answer:
b.)Electrons leave the negative battery terminal and electrons enter the positive terminal.
Explanation:
- First of all, the carriers of charge in an electrical circuit are the electrons, not the protons. In fact, electrons in a conductor (such as the copper wire) are free to move, while protons are bond inside the nuclei of the atoms, so they are not free to move. This means that only choices a) and b) could be correct.
- Finally, we know that charges with same sign repel each other, while charges with opposite sign attract each other. This means that electrons are repelled by the negative terminal of the battery and attracted by the positive terminal of the battery. Therefore, the correct choice must be
b.)Electrons leave the negative battery terminal and electrons enter the positive terminal.
