Answer:
Explanation:
Given
radius
Charge on surface
Point Charge inside sphere
Electric Field at
Treating Surface charge as Point charge and applying Gauss law
where A=surface area up to distance r
PLS HELP! If a person has a weight of 600 N, how much will they weigh on the Moon?
2 answers:
Explanation :
It is given that, the weight of the person on the earth is 600 N. The weight is equal to :
W = m g
where
g is the acceleration due to gravity on the earth, g = 10 m/s²
m = 60 kg
We know that the mass of an object remains constant everywhere.
The value of g on moon is, g' = 1.63 m/s²
So, W' = m g'
W' = 97.8 N
Hence, the weigh on the moon is 97.8 N.
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Answer:
a) 24.43 radians per second
b) 268.73 inches per second
Explanation:
a) The angular speed of the fan on Celsius degrees/second is 1400, so we should convert that value to radians using the fact that 2π rad = 360 °C:
b) Linear speed on a point of the blade is related with angular speed of the fan by the equation
with v linear speed, ω angular speed and r the radius of the blades. So:
Radians isn't really a unity; it is dimensionless so we can put it or not. So:
Answer:
245.45km in a direction 21.45° west of north from city A
Explanation:
Let's place the origin of a coordinate system at city A.
The final position of the airplane is given by:
rf = ra + rb + rc where ra, rb and rc are the vectors of the relative displacements the airplane has made. If we separate this equation into its x and y coordinates:
rfX = raX+ rbX + rcX = 175*cos(30)-150*sin(20)-190 = -89.75km
rfY = raY + rbY + rcT = 175*sin(30)+150*cos(20) = 228.45km
The module of this position is:
And the angle measure from the y-axis is:
So the answer is 245.45km in a direction 21.45° west of north from city A