On a cold winter day, the flow of heat is from the outside in. A.True B.False
2 answers:
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Answer:
magnification = - 30
overall magnification = -240
Explanation:
given data
Focal length of microscope objective f = 0.150 cm
Object distance from microscope objective do = 0.155 cm
magnification by eyepiece = 8 ×
to find out
What magnification is produced and overall magnification
solution
we consider here Image distance from microscope objective is = di
so that
Magnification produced by objective will be = -
so we find here di by given equation that is
..................1
di = 4.65 cm
so that magnification by object will be
magnification = -
magnification = -
magnification = - 30
and
overall magnification will be
overall magnification = magnification by objective × magnification by eyepiece ........................2
overall magnification = -30 × 8
overall magnification = -240
Answer:
upward
4.725 kgm/s to the right
468.6 kgm/s southwest
forward
Explanation:
When the mass of an object is multiplied by its velocity we get momentum
m = Mass
v = Velocity
Proton
The momentum of the proton is upward
Bullet
The momentum of the bullet is 4.725 kgm/s to the right
Sprinter
The momentum of the sprinter is 468.6 kgm/s southwest
Earth
The momentum of the sprinter is forward