Answer:
B
Explanation:
resultant force is 5 so fnet /m=a
or 5/5=1ms2=B
Answer:
The speed of the receiver is 0.074 m/s.
Explanation:
Given that,
Mass of the receiver, m = 96 kg
Mass of the ball, m' = 0.42 m/s
Initially the receiver is at rest, u = 0
Initial speed of the ball, u' = 17 m/s
We need to find the speed of the receiver after the collision. It is a case of conservation of momentum. Let V is the speed of the receiver.
V = 0.074 m/s
So, the speed of the receiver is 0.074 m/s. Hence, this is the required solution.
The frequency of the wave is 0.5Hertz
<h3>How to calculate the
frequency of a wave</h3>
The formula for calculating the velocity of a wave is expressed as:
velocity = frequency * wavelength
Determine the formula for the frequency
frequency = velocity/wavelength
Given the following parameters
Velocity = 1.00 m/s
wavelength = 2.00m
Determine the frequency
f = 1.00/2.00
f = 0.5Hz
Hence the frequency of the wave is 0.5Hertz
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The number of molecules and the temperature must be kept constant.
Boyle's law is a gas law that states that a gas's pushing force (when it is of a certain mass and maintained at a constant temperature) is in direct opposition to the volume that it occupies. As a result, as long as the temperature and volume of the gas are maintained constant, the pressing factor and volume of the gas are incongruously comparable to one another.
V ∝ 1/P
V = K/P
PV = K
Therefore, the temperature will be the constant variable in Boyle's law. Even though it is the only constant factor, volume, temperature, and pressing factor are all in direct opposition to one another.
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Answer:
15. 4
16. 1
17. 2
18. 2
Explanation:
15. Consumers in the food chain are ranked according to what they eat. More specifically , they are organised into primary, secondary and tertiary consumers, depending upon what they consume for food. Primary consumers eat mostly plants, and are usually herbivores, tertiary consumers are top predators in the food chain.
16. Decomposers break down dead animals and plants. They are usually bacteria or other small fungi. They play the important role of recycling nutrients from dead matter back into the land. E.g. back into the soil where nutrients can be taken up by plants
17. Food webs are usually extremely complex in nature, with a variety of interactions of different organisms that are of different strengths and importance for the entire food web. Food webs are a good conceptual analysis, but practically are not simple to draw up into a simple web
18. The incorrect statement is that energy travels in both directions in a food web. Energy travel in a food web can be represented in a pyramid, which shows that energy at the bottom of the pyramid is greater than at the top. Energy is lost at every layer of the pyramid from producers up to the tertiary consumers at the top