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Maksim231197 [3]
3 years ago
9

Dimensionally, which of the following could be a velocity? *

Physics
1 answer:
astra-53 [7]3 years ago
5 0

Answer:

5 meters per second

Explanation:

5m is the distance

5m west is the vector

5m per second is the velocity

5m per second west is unknown

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A 2-kg ball is moving with a speed of 4 m/s, and a 4-kg ball is moving with a speed of 2 m/s. What can you conclude about the of
Mila [183]
<h2>Kinetic energy of mass 4 kg ball is less than kinetic energy of mass 2 kg ball</h2>

Explanation:

Kinetic energy = 0.5 x Mass x Velocity²

For ball of mass 2 kg

           Mass, m = 2 kg

           Velocity, v = 4 m/s

           Kinetic energy = 0.5 x 2 x 4² = 16 J

For ball of mass 4 kg

           Mass, m = 4 kg

           Velocity, v = 2 m/s

           Kinetic energy = 0.5 x 4 x 2² = 8 J

Kinetic energy of mass 4 kg ball is less than kinetic energy of mass 2 kg ball

4 0
3 years ago
1. List some environmental challenges identified by the Brundtland Commission's overview, as well as a key strategy for addressi
natka813 [3]

The Brundtland Commission spotted as a matter of urgency, the interconnection between natural resource use and the economy.

<h3>What is the  Brundtland Commission?</h3>

The Brundtland Commission was set up with the intention to achieve sustainable development. The tenure of the commission lasted from 1984 to 1987.

The commission identified the pillars of sustainable growth as economic growth, environmental protection, and social equality. The committee opined that environmental problem emanates from poverty in the southern region and reckless consumption of resources in the northern region.

The Brundtland Commission spotted as a matter of urgency, the interconnection between natural resource use and the economy.

Learn more about the Brundtland Commission:brainly.com/question/8285049?

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4 0
2 years ago
In physics, what is the positive and negative sign used for when applied to velocity and acceleration?
Kobotan [32]

Answer:

Opposite direction

Explanation:

For example: The first object travels in the direction pointing to east, while the other one travels pointing to the west.

The first object will have a positive value while the second one will have a negative, cause it's going to the opposite direction

6 0
3 years ago
3. Which of the following is NOT a function of the liver?
Inga [223]

Answer:

C) to produce white blood cells

Explanation:

Your liver does all of the others things except produce white blood cells

If it helps consider making brianliest (it helps alot)

8 0
3 years ago
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What is the impulse that a car with mass of 5kg experiences when its velocity changes from -9m/s to 25m/s?
Amiraneli [1.4K]

Answer:

170 kg m/s

Explanation:

Impulse = change in momentum

J = m Δv

J = (5 kg) (25 m/s − (-9 m/s))

J = 170 kg m/s

4 0
3 years ago
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