Answer: Green house effect is the process affected by the absorption of the thermal energy from the sun.
Explanation:
Green house effect is the process in which the thermal energy is received from the sun. This thermal energy warms the earth's surface. Some sun's energy reaches the Earth's atmosphere and some are reflected to the space. The rest is mostly absorbed by the water vapor and carbon dioxide and some are re-radiated by the green house gases.
This effects maintains the earth's temperature.
Therefore, green house effect is the process affected by the absorption of the thermal energy from the sun.
The correct answer to the question is C).Dry ice changes to carbon dioxide when kept in an open container.
EXPLANATION:
Before answering this question, first we have to understand sublimation.
Sublimation is a thermal process of state or phase change in which solid substance is directly converted into gas without melting i.e the substance won't undergo liquid state.
In the given question, dry ice is given. Dry ice is the solid state of carbon dioxide. When the dry ice changes to carbon dioxide, directly solid carbon dioxide is converted into gaseous carbon dioxide. No liquid carbon dioxide is formed . So, the phase change is from solid to gas.
Hence, the conversion of dry ice into carbon dioxide is an example of sublimation.
Answer:
103.3 Kg
Explanation:
Use the following formula;
K.E = I/2 mv^2
529*2/(3.2)^2 =m
103.3 Kg=m
The time taken for the mass to reach the bottom of the inclined plane after it is released from rest is 0.78 s.
<h3>
Height of the inclined plane</h3>
The height of the inclined plane is calculated as follows;
h = L(sin 37)
where;
- h is height of the plane
- L is length of the plane
h = 5 x sin(37)
h = 3.01 m
<h3>Time of motion of the mass</h3>
t = √(2h/g)
t = √(2 x 3.01 / 9.8)
t = 0.78 s
Thus, the time taken for the mass to reach the bottom of the inclined plane after it is released from rest is 0.78 s.
Learn more about time of motion here: brainly.com/question/2364404
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