Answer:
True.
Explanation:
A nanometer is a unit of mass, whereas a nanosecond is a unit of time. To convert 1.3 hours to minute, you would multiply by 1 h / 60 min. Kilometer is a unit of length, whereas kilogram is a unit of mass. True.
Answer:
Current, I = 0.54 A
Resistance, R = 201.6 ohms
Explanation:
Electric power is given in terms of current, I, and voltage, V, as:
P = I*V
I = P/V
The current flowing in the 60 W bulb will be:
I = 60/110 = 0.54 Amps
The resistance can be gotten by using an alternate formula for Power in terms of resistance:
P = V²/R
R = V²/P
R = 110²/60
R = 201.6 ohms
The 60W bulb has a current 0.54A flowing through it and a resistance of 201.6 ohms.
With the use of electric force formula, the direction and magnitude of the net force exerted on the point charge q3 are 9.9 x N and 66 degrees
ELECTRIC FORCE (F)
F =
Where K = 9 x N/
The distance between and can be calculated by using Pythagoras theorem.
d =
d = 46.7 cm = 0.467 m
For force , substitute all the parameters into the formula above
= (9 x x 3 x 1)/
= 2.7 x /0.218
= 1.24 x N
For force , substitute all the parameters into the formula above
= (9 x x 3 x 4)/
= 1.08 x /0.1089
= 9.92 x N
For force , substitute all the parameters into the formula above
= (9 x x 3 x 2)/
= 5.4 x /0.1089
= 4.96 x N
Summation of forces on Y component will be
= - Sin 45
= 9.92 x - 1.24 x Sin 45
= 9.04 x N
Summation of forces on X component will be
= - Cos 45
= 4.96 x - 1.24 x Sin 45
= 4.08 x N
Net Force =
Net force =
Net force = 9.9 x N
The direction will be
Tan ∅ = /
Tan ∅ = 9.04 x / 4.08 x
Tan ∅ = 2.216
∅ = (2.216)
∅ = 65.7 degrees
Therefore, the direction and magnitude of the net force exerted on the point charge q3 are 9.9 x N and 66 degrees approximately.
Learn more about electric Force here: brainly.com/question/4053816
Answer:
120 miles/hour
Explanation:
The average speed is the ratio of total distance covered by an object or a body to the total time taken to cover the distance.
Mathematically,
<em>Average speed = total distance covered/total time taken</em>
In the case of Connie:
total distance = 180 + 180 = 360 miles
In order to calculate the time for each trip
<em>speed = distance/time</em>
<em> time = distance/speed</em>
From Phoenix to flagstaff:
time = 180/180 = 1 hour
From flagstaff back to Phoenix:
time = 180/90 = 2 hours
total time taken = 1 + 2 = 3 hours
Average speed = 360/3 = 120 miles/hour
<em>Hence, the average speed is </em><em>120 miles per hour.</em>