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Ganezh [65]
3 years ago
12

Which of the following is the most reasonable weight in units of newtons for an average adult?

Physics
2 answers:
Oliga [24]3 years ago
7 0

Answer: The reason weight for average adult is 530N

Explanation: The clearly see this answer, let's convert this weight to kg using F=mg

530=m×9.8

g is a constant of 9.8m/s2

We divide both sides by 9.8 to get

54kg then this weight is reasonable for an average adult.

ValentinkaMS [17]3 years ago
5 0

Answer:

Explanation:

120 N AND 530N

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The change in momentum for an object is equal to
koban [17]

Answer:

We conclude that the change in momentum of a body is equal to the impulse experienced by a body.

Explanation:

Considering the equation

F • t = m • Δ v

Here,

m • Δ v is basically a change in momentum of a body which is equal to the mass of the object multiplied by the change in its velocity.

Also,

  • F • t is called the impulse of the object.

In the formula, it is clear that the impulse experienced by a body during the collision is basically a change in the momentum of the body.

In other words, the change in momentum of a body is equal to the impulse experienced by a body.

Therefore, we conclude that the change in momentum of a body is equal to the impulse experienced by a body.

4 0
3 years ago
Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest.
avanturin [10]
5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.<span>

The answer choice above is correct.

The instantaneous velocities are the actual </span>velocities while traveling ( the velocity during that instant ). The average velocity is the average of the instantaneous velocities ( the speed in one direction equivalent to the two speeds <span>in different directions ).

I used speed in the explanation because velocity is speed with direction.</span>
7 0
3 years ago
Read 2 more answers
When the force at the ends of a bar pushes rather than pulls, the bar experiences<br>​
goldenfox [79]

Answer:

Compression

Explanation:

Force is defined as a push or pull on any object. Now, Force could either be in Compression or tension which are the push and pull that allow overhead bridges to remain erect after many years.

Now, Compression is a force that compresses objects together. Meanwhile, Tension is the opposite of compression and it is the force that pulls objects apart.

7 0
2 years ago
A 18 kg sled starts up a 28 degree incline with a speed of 2.3 m/s. The coefficient of kinetic friction between the sled and the
sergey [27]

Answer:

d = 0.391 m

Explanation:

given,

mass of sled = 18 kg

inclined at an angle of  = 28°

kinetic friction between the sled and inclined = 0.25

using energy equation

\dfrac{1}{2}mv^2- Fd - mgh = 0

\dfrac{1}{2}mv^2- (\mu mg cos\theta )d - mgdsin\theta = 0

\dfrac{1}{2}mv^2 = (\mu mg cos\theta )d + mgdsin\theta

\dfrac{1}{2}mv^2 = d mg (\mu cos\theta+sin\theta)

d = \dfrac{v^2}{2g (\mu cos\theta+sin\theta)}

d = \dfrac{2.3^2}{2\times 9.8 (0.25\times cos28^0+sin28^0)}

d = 0.391 m

hence, the distance traveled by the sled is equal to 0.391 m

7 0
3 years ago
A pea plant has purple flowers. It has a genotype Pp. Which of the following about the gene of flower color in the pea plant is
patriot [66]
The answer is the last one; the pea plant received different alleles from the parents.
5 0
2 years ago
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