Answer: An AU equals the distance between Earth and the Sun; a parsec
equals the angle between an object's apparent positions when viewed
from two different locations.
Explanation:
Light year is the distance light travels in one Earth year. 1 light year is equal to .
An astronomical unit (AU) is the average distance between the earth and the sun. An AU is approximately 150 million km.
A parsec is the distance at which one astronomical unit subtends an angle of one second of arc. 1 parsec is equal to 20600 AU.
Answer: a= ff+fh/m
Explanation: bc khan academy said it was d. a=ff +fh/m
Answer:3500N
Explanation:
mass=700kg
acceleration=5m/s^2
Force=mass x acceleration
Force=700 x 5
Force=3500
Force=3500N
Answer:
a) 0.09N b) positive x direction
Explanation:
Force on a conductor carrying current in a magnetic field can be expressed as;
F = BILsin(theta) where
F is the force on the conductor (wire)
B is the uniform magnetic field I'm Tesla = 1.8Tesla
I is the current in the wire = 5×10^-2A
L is the length of the wire = 1m
theta is the angle that the conductor make with the magnetic field = 90° (since the wire in the horizontal direction is perpendicular to the field acting upwards)
Substituting this value in the formula to get F we have;
F = 1.8×5×10^-2×1 × sin90°
F = 0.09N
The force on the wire is 0.09N
b) The direction of the force is in the positive x direction since the wire acts horizontally to the magnetic field.
Answer:
When objects fall to the ground, gravity causes them to accelerate. ... Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls. In fact, its velocity increases by 9.8 m/s2, so by 1 second after an object starts falling, its velocity is 9.8 m/s.
Explanation:
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