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Lynna [10]
4 years ago
6

How many lenses does a microscope use?

Physics
2 answers:
Shalnov [3]4 years ago
7 0
The simplest optical microscope is the magnifying glass and is good to about ten times (10X) magnification. The compound microscope has two<span> systems of lenses for greater magnification, 1) the ocular, or eyepiece lens that one looks into and </span>2<span>) the objective lens, or the lens closest to the object.</span>
Nutka1998 [239]4 years ago
7 0
The simplest optical microscope has two lenses
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A 42.6kg lamp is hanging from wires as shown in figure.The ring has negligible mass. Find tensionsT1, T2,T3 if the object is in
IRISSAK [1]

Answer:

T1 = 417.48N

T2 = 361.54N

T3 = 208.74N

Explanation:

Using the sin rule to fine the tension in the strings;

Given

amass = 42.6kg

Weight = 42.6 * 9.8 = 417.48N

The third angle will be 180-(60+30)= 90 degrees

Using the sine rule

W/Sin 90 = T3/sin 30 = T2/sin 60

Get T3;

W/Sin 90 = T3/sin 30

417.48/1 = T3/sin30

T3 = 417.48sin30

T3 = 417.48(0.5)

T3 = 208.74N

Also;

W/sin90 = T2/sin 60

417.48/1 = T2/sin60

T2 = 417.48sin60

T2 = 417.48(0.8660)

T2 = 361.54N

The Tension T1 = Weight of the object = 417.48N

8 0
3 years ago
Select the correct answer.<br> Which type of energy is thermal energy a form of
elena-s [515]
Kinetic energy. thermal energy (a low form of energy ) is a form of kinetic energy as it is produced as a result of motion of particles either if they vibrate at their position or they move along longer paths. Motion produces friction or resistance which leads to excitation and thus the heat is produced. The higher the motion of the particles, the higher would be the thermal energy.
7 0
3 years ago
On the planet Xenophous a 1.00 m long pendulum on a clock has a period of 1.32 s. What is the free fall acceleration on Xenophou
myrzilka [38]
The period of the pendulum is given by the following equation

T = 2<span>π * sqrt (L/g)

Where g is the gravity (free fall acceleration)

L is the longitude of the pendulum

T is the period.

We find g.............> (T /2</span>π)<span>^</span><span>2 = L/g

g = L/(</span>T /2π)^2...........> g = 22.657 m/s^2
8 0
3 years ago
A piece of taffy slams into and sticks to another identical piece of taffy that is at rest. The momentum of the two pieces stuck
Yanka [14]

Answer:0.5

Explanation:

Given

Piece of taffy slams in to sticks to another identical  piece and stuck into it.

Let m be the mass of taffy and u be the initial velocity of taffy and v be the final velocity of system.

Conserving momentum

mu=2mv

v=\frac{u}{2}

Initial kinetic energy=\frac{mu^2}{2}

Final Kinetic Energy=\frac{2m(\frac{u}{2})^2}{2}=\frac{mu^2}{4}

change in kinetic energy \Delta K.E.=\frac{mu^2}{2}-\frac{mu^2}{4}=\frac{mu^2}{4}

change in kinetic energy will contribute in heat energy

thus fraction of kinetic energy converted in to heat =\frac{heat\ energy}{Initial\ kinetic\ Energy} =\frac{\frac{mu^2}{4}}{\frac{mu^2}{2}}=\frac{1}{2}=0.5

5 0
4 years ago
HELPPP!!!
dimaraw [331]

Answer:3

Explanation:

8 0
4 years ago
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