Answer:
<h2>
6.36 cm</h2>
Explanation:
Using the formula to first get the image distance
1/f = 1/u+1/v
f = focal length of the lens
u = object distance
v = image distance
Given f = 16.0 cm, u = 24.8 cm
1/v = 1/16 - 1/24.8
1/v = 0.0625-0.04032
1/v = 0.02218
v = 1/0.02218
v = 45.09 cm
To get the image height, we will us the magnification formula.
Mag = v/u = Hi/H
Hi = image height = ?
H = object height = 3.50 cm
45.09/24.8 = Hi/3.50
Hi = (45.09*3.50)/24.8
Hi = 6.36 cm
The image height is 6.36 cm
When plates pull apart underwater, the hot magma instantly rises and spreads itself to form a new ocean floor.Under a continent, the crust splits open to allow magma out. The magma might make its way slowly to the surface, creating warm areas and hot springs or geysers as surface water meets it.<span>Or the magma might explode, bringing into existence a new volcano where there was only cool earth before.</span>
The lowest possible temperature is absolute zero. However scientists have not reached this temperature, rather they have come very close to absolute zero.
A blue "H" means a center of high pressure (usually calm, sunny weather). A red "L" means low pressure (which can mean storminess). Most fronts extend from low-pressure centers.
Answer:
a) T1 = 7.48 N
b) T2 = 18.09N
c) I = 0.0115 kgm^2
Explanation:
Mass of textbook= 2.08kg
Diameter of cord = 0.130m
Radius = 0.130/2 = 0.065m
Distance = 1.30m
Time interval = 0.830 sec
From equation of motion,
S = ut + 1/2at^2
U = initial velocity = 0
S = 1/2at^2
2S = at^2
a = 2S/t^2
a = 2(1.3) / 0.830^2
a = 3.77 m/s^2
T1 = m1*a ..........(1)
m2g - T2 = m2a..........(2)
T1 = (2.08)(3.77)
T1 = 7.84N
m2g - T2 = m2a
T2 = m2g - m2a
T2 = m2(g - a)
T2 = 3(9.80 - 3.77)
T2 = 3(6.03)
T2 = 18.09N
Moment of inertia (I)
I = [(T2 - T1) r^2]/a
I = [(18.09 - 7.84)(0.065)^2]/ 3.77
I = (10.25)(0.065)^2 / 3.77
I = 0.0115 kgm^2