D is s s s s s ss s s s s
Answer:
Explanation:
Let l be th length of pendulum
loss of height
= mg ( l - l cos50)
= mg l ( 1-cos50)
1/2 mv² = mgl ( 1-cos50)
v = √[2gl( 1- cos50)]
= √( 2 x 9.8 x .7 x ( 1-cos50)
= 2.2 m / s
speed at the bottom = 2.2 m /s
b )
centripetal acceleration
= v² / r
= 2.2 x 2.2 / .7
= 6.9 m /s²
C )
If T be the tension
T - mg = mv² / r
T = mg + mv² / r
= .13 X 9.8 + .13 X 6.9
= 2.17 N
Answer:
Higher, Windward side, Condenses
Explanation:
The Windward side refers to that side of a mountain that faces the direction from which the wind is blowing. In this direction, the moisture containing hot air blowing from a distant place moves upward and strikes the mountain at a greater height, where the air mass is thin and the temperature is relatively cold. As the temperature and pressure decrease with altitude, the hot uprising air cools and gradually condenses. This results in the occurrence of high precipitation over this region i.e. the windward side of the mountain.
Therefore, the precipitation is always higher on the windward side of a mountain as the hot air undergoes condensation at greater height as it rises upward.
Because when you spill water on it, the reflection comes from the surface of the water, not the ground glass.
Answer:
The three quantized particles are:
1. Electrons
2. Protons
3. Neutrons
Explanation:
Quantization can be defined as the conversion of a continuous quantity into discrete set of values.
It can also be defined as the concept which says that the particles exist as the smallest finite and discrete value known as quanta which not be divided further.
The three particles include:
1. The electron bound inside an atom have quantized momentum and energy.
2. The proton bound in the inside of a nucleus has energy in the quantized form only.
3. Also the nucleus bound neutron is also a quantized particle.
