Answer:
T=5797.8 K
Explanation:
Given that
Power P = 3.9 x 10²⁶ W
Radius ,r= 6.96 x 10⁸ m
We know that ,From Plank's law
P = σ A T⁴
σ = 5.67 x 10 ⁻⁸
A= Area ,T= Temperature ( in Kelvin)
Now by putting the values
T=5797.8 K
The temperature of surface will be 5797.8 K
Answer:
t = 6.15 minutes
α = - 3.9 x 10^-3 rad/s^2
Explanation:
n = 42.3 rev
angle turns in one revolution = 2 π radians
Angle turns in 42.3 rev = 2 x 3.14 x 42.3 = 265.644 rad
ωo = 1.44 rad/s, ω = 0
Let t be the time taken to stop and the angular acceleration is α.
Use third equation of motion for rotational motion
ω^2 = ωo^2 + 2 α θ
0 = 1.44 x 1.44 + 2 α x 265.644
α = - 3.9 x 10^-3 rad/s^2
Use first equation of motion for rotational motion
ω = ωo + α t
0 = 1.44 - 3.9 x 10^-3 x t
t = 368.95 second = 6.15 minutes
Answer:
The new energy is 1/16 of the original energy
Explanation:
A capacitor is an electric device which is able to store charge when it is connected to a power supply.
The energy stored in a capacitor is given by the equation
where:
Q is the charge stored on the capacitor
C is the capacitance of the capacitor
For the capacitor in this problem, initially we have
E = 7 J (energy) when the charge stored is Q and the capacitance is C
Later, the charge is decreased to 1/4 of its original value, so the new charge is
Since the capacitance remains the same, the new energy is
Therefore, the new energy is 1/16 of the original energy.
<span>a planes engines are designed to move it forward at high speed. That makes air flow rapidly over the </span>wings<span>, which throw the air down toward the </span>ground<span>, generating an upward force called </span>lift<span> that overcomes the </span>plane's<span> weight and holds it in the sky. ... The </span>wings<span> force the air downward and that pushes the </span>plane<span> upward</span>
B is its ending state for the state machine shown below is in state c and receives the string 100010.
<h3>A state machine is difficult to explain.</h3>
A state machine reads a set of inputs and switches states in response to those inputs. A system is said to be in a state when it is waiting to make a transition. A transition is a sequence of steps to carry out when a condition is met or an event is received.
State machines are a type of programming architecture that enable dynamic flow between states based on values from earlier states or user inputs. Applications that can be categorized as a combination of the following fit well with this architecture: States. When to relocate to a specific state, using decision-making logic.
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