Answer:
Mixtures are materials that contain two or more chemical substances dispersed among each other (mixed together). If no chemical reaction occurs when two materials are mixed, they form a mixture. The chemical properties of the components don't change.
Explanation:
In the given graph, from 4.0 s to 8.0 s, the object is at rest because the speed is zero.
In the given graph we can deduce the following;
- at the time interval, 0 s to 3.5 s, the speed of the object = 1 cm/s
- when the time, t= 4 s, the <em>speed</em> of the object = 0 cm/s
- at the time interval, 4.0 s to 8.0 s, the<em> speed </em>of the object = 0 cm/s
When the <em>speed</em> of an object is zero (0), the object is simply at rest.
Thus, we can conclude that in the given graph, from 4.0 s to 8.0 s, the object is at rest because the speed is zero.
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Answer:
Explanation:
Given
mass of object 
kinetic Energy 
Tension in string 
mass is moving in a horizontal circle so tension is providing the centripetal acceleration
therefore 
where r=radius of circle
kinetic energy of particle 
divide 1 and 2 we get
Fermentation is an aerobic process which means it uses oxygen. anaerobic is a process with out oxegyn
Answer;
-40% or 40 percent
Explanation;
-The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
-Without enough light, a plant cannot photosynthesize very quickly; even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor (a limiting factor) becomes in short supply.
-An increase in light intensity will produce an increase in the rate of photosynthesis until a level of light intensity is reached (normally 40%) above which the rate does not increase because the light saturation point has been reached and another factor (CO2 concentration or temperature) is limiting.
