Which of the following quantities is a velocity?A. 25 m/s
B. 3 g/L in weight
C. 15 m/s2
D. 10 km/hr eastward

Answers

Answer 1
Answer:

Velocity of a moving body is its distance covered by time. Thus, it has the unit of m/s, km/hr. etc. . Therefore, among the given options, 25 m/s and 10 km/hr. are represents a velocity.

What is velocity ?

Velocity is a physical quantity having both direction and magnitude. Thus, it is a vector quantity and it measures  the distance covered by an object per unit time.

Velocity is the ratio of distance to the time, hence its  units  are m/s, km/hr etc. The rate of change in velocity is called acceleration. Thus acceleration is change in velocity by change in time. Thus, its unit is m/s². Hence, 15 m/s² represents acceleration.

The quantity 3 g/L represents the mass per volume and hence it is density of a substance or can be the concentration of a solution. Thus, options A and D are correct.

To find more on velocity, refer here:

brainly.com/question/18084516

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Answer 2
Answer:

Answer:A

Explanation:

It’s A because the velocity is measured in m/s


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____________ is the practice of raising fish and other water-dwelling organisms for foodA. Land Redamation
 B. Aquifier
 C. desertification 
 D. aquaculture

Answers

Answer is 
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Tom left for his friend's house. He drove 60 km in an hour. When he got to John's house, he wondered how fast he had been driving. What formula would he use to determine his speed?

Answers

Answer: Tom drove 60 km/hr fast

Speed = Distance traveled / time taken

Explanation:

Given that:

Distance traveled by Tom = 60 km

Time taken by Tom = 1 hour

Speed = ?

Since speed is obtained by dividing distance traveled by the time taken, hence the formula to use is as follows:

speed = distance / time

Speed = 60 km / 1 hour

Speed = 60 km/hr

Thus, Tom had been driving 60 km/hr fast, using the formula "speed = distance / time"

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Answers

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. Which is the transfer of energy as waves moving through space?conduction
insulation
convection
radiation

Answers

Answer:

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What do you think swarming locusts affect planted crops?

Answers

Answer:

Large swarms of locusts can completely strip the foliage and stems of plants such as forbs and grasses. ... They often eat dry plant matter on the ground and will forage for weak or dead grasshoppers when plant food is scarce. As nymphs have a large appetite, they cause more damage than adults.

Explanation:

Answer:

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Explanation:

but they still eat them