To answer the problem we would be using this formula which isE = hc/L where E is the energy, h is Planck's constant, c is the speed of light and L is the wavelength
L = hc/E = 4.136×10−15 eV·s (2.998x10^8 m/s)/10^4 eV
= 1.240x10^-10 m
= 1.240x10^-1 nm
Answer:
magnitude=34.45 m
direction=![55.52\°](https://tex.z-dn.net/?f=55.52%5C%C2%B0)
Explanation:
Assuming the initial point P1 of this vector is at the origin:
P1=(X1,Y1)=(0,0)
And knowing the other point is P2=(X2,Y2)=(19.5,28.4)
We can find the magnitude and direction of this vector, taking into account a vector has a initial and a final point, with an x-component and a y-component.
For the magnitude we will use the formula to calculate the distance
between two points:
(1)
(2)
(3)
(4) This is the magnitude of the vector
For the direction, which is the measure of the angle the vector makes with a horizontal line, we will use the following formula:
(5)
(6)
(7)
Finding
:
(8)
(9) This is the direction of the vector
In physics, the rate of power in Watts could be determined by multiplying the voltage in volts, by the current in Amperes. In equation, that would be
P = IV
Substituting the values into the equation,
60 W = I*12V
I = 60/12
I = 5 Amperes
Therefore, a current of 5 Amperes is passing through the yellow wire.
COMPLETE QUESTION:
Phileas is going on a hot air balloon ride. His height above the ground
after t minutes is a quadratic function of t.
He begins from a platform at a height of 76 meters.
The balloon reaches its maximum height after 30 minutes.
After 80 minutes, he finally lands (at a height of 0 meters)
(a) Give a function f(t) for Phileas’s height above the ground after t minutes.
Answer:
f(t) = (-76/160)t² + (9560/1600)t + 76
Explanation:
Clearly explained in the attachment below