Answer:
(A) = 2.13 s
(B) = 0.47 Hz
(C) = 0.25 m
(D) = 0.74 m/s
Explanation:
number of oscillations (n) = 15
time (t) = 32 secs
start point (L1) = 13 cm = 0.13 m
End point (L2) = 63 cm = 0.63 m
(A) period = time / number of oscillation
= 32 / 15 = 2.13 s
(B) frequency = 1 / period
= 1 / 2.13 = 0.47 Hz
(C) Amplitude = 0.5 ( L2 - L1 )
= 0.5 ( 0.63 - 0.13 )
= 0.25 m
(D) max speed = (2π / T) x A
= (2π / 2.13) x 0.25
= 0.74 m/s
Answer:
The answer to your question is: D) Ф₂ = 49.71°
Explanation:
Data
n₁ = 1.33
Ф₁ = 35°C
n₂ = 1
Ф₂ = sin⁻¹ (n₁ sinФ₁/n₂)
Process
Substitution
Ф₂ = sin⁻¹ (n₁ sinФ₁/n₂)
Ф₂ = sin⁻¹ (1.33 sin 35/1)
Ф₂ = sin⁻¹ (1.33 x 0.574/ 1)
Ф₂ = sin⁻¹ ( 0.7628 / 1)
Ф₂ = sin⁻¹ (0.7628)
Ф₂ = 49.71°
Answer:
Explanation:
Well mathematically it would look like this
E = k * I
k is the constant of proportionality.
As the voltage goes up, so does the current.
As the voltage goes down, so does the current.
In physics and engineering,, the formula is written somewhat differently.
E = I * R
The R is a device which limits the current. If R = 0 (like it is just a switch closing) then the first thing you will notice is that the lights go out and you better know where the circuit breakers are and have a flashlight to see which one you shorted out.
So R has a value > 0 in practice.
Answer:
C) 2
Explanation:
The amount of centimeters is about 2.5 centimeters in an inch
The girls distance is 50 km in 2 hours.
