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Anit [1.1K]
2 years ago
9

Which statements describe the Gironde ecosystem

Physics
1 answer:
Alchen [17]2 years ago
6 0

Answer:

Gironde Ecosystem is an important biological and cultural area.

Explanation:

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What does a Lewis structure diagram represent?
densk [106]

Answer:

correct me if i'm wrong nut i thinks its a The atomic symbol of an element surrounded by valence electrons

Explanation:

5 0
3 years ago
Read 2 more answers
A car of mass 1000 kg is moving at 25 m/s. It collides with a car of mass 1200 kg moving at 30 m/s. When the cars collide, they
Alinara [238K]

Answer:

The total momentum of the cars before the collision is 61,000 kg.m/s

The total momentum of the cars after the collision is 61,000 kg.m/s

The velocity of the cars after the collision is 27.727 m/s

Explanation:

Given;

mass of the first car, m₁ = 1000 kg

initial velocity of the car, u₁ = 25 m/s

mass of the second car, m₂ = 1200 kg

initial velocity of the second car, u₂ = 30 m/s

The common velocity of the cars after collision = v

The total momentum of the cars before collision is calculated as;

P₁ = m₁u₁  +  m₂u₂

P₁ = (1000 x 25)  +  (1200 x 30)

P₁ = 61,000 kg.m/s

The total momentum of the cars after collision is calculated as;

P₂ = m₁v + m₂v

where;

v    is the common velocities of the cars after collision since they stick together.

P₂ = v(m₁ + m₂)

To determine "v" apply the principle of conservation of linear momentum for inelastic collision.

m₁u₁  +  m₂u₂  = v(m₁  + m₂)

(1000 x 25)  +  (1200 x 30) = v(1000 + 1200)

61,000 = 2,200v

v = 61,000/2,200

v = 27.727 m/s

The total momentum after collsion = v(m₁ + m₂)

                                                         = 27.727(1000 + 1200)

                                                          = 61,000 kg.m/s

Thus, momentum before and after collsion are equal.

8 0
2 years ago
Which of newton’s laws best explains why motorists should buckle up?
ivann1987 [24]
Newton's first law of motion.
4 0
2 years ago
This rock, known as balance rock, sits on a thin spike of rock in a canyon in idaho. explain the forces that keep the rock balan
Evgen [1.6K]

Answer:

Action force and Reaction force

Explanation:

The action force which is the balanced rock pushing down due to gravity and the reaction force pushing the equal amount of force. These two things are stated in Newtons third law, where he states that "Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first." Also, he states that "all forces acts in pairs," meaning that every force exerted, there is an opposite force on the first.

7 0
3 years ago
On a spring scale that measures force, a reading shows the force of an object to be about halfway between 7 N and 8 N. Which of
Over [174]

Your answer is 7.5 N

3 0
3 years ago
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