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zhenek [66]
3 years ago
15

Which of the following statements describes Newton's first law?

Physics
1 answer:
jeka943 years ago
5 0

Answer:

F = MA

Explanation:

OP you didn't give us any examples, but force equals mass times acceleration is Newton's First Law.

Dropping a ball (mass) from the top of a building can show gravity, a form of acceleration.

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The ___________ effect is the change of pitch heard when the source of the sound approaches and then moves away from a stationar
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The simple act of walking requires single leg
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Draw in force and velocity vectors at the four marked positions the object below is moving counterclockwise in uniform circular
Ilia_Sergeevich [38]
This is what it would look like—
Angular velocity = w
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4 0
3 years ago
A car of mass 2200 kg collides with a truck of mass 4500 kg, and just after the collision the car and truck slide along, stuck t
katovenus [111]

Answer:

37.7m/s: principle of conservation of momentum

Explanation:

The principle to make use of is the principle of conservation of momentum which States that the sum of momentum of bodies before collision is equal to the sum of momentum of bodies after collision. This bodies will move with the same velocity after collision.

Momentum = Mass × velocity

For car of mass 2200kg moving with velocity 33m/s:

Momentum of car before collision = 2200×33

= 72,600kgm/s

For the truck of mass 4500kg;

Momentum = 4500 ×(22-(-18)

= 4500×40

= 180000kgm/s

After collision, their momentum is:

Momentum after collision = (2200+4500)v

= 6700v

Using the principle above to get the common velocity v we have

72600+180000 = 6700v

252600 = 6700v

v = 252600/6700

v = 37.7m/s

7 0
3 years ago
The breastbone is posterior to the spine.. Unselected The collarbone is superior to the shoulder blade. Unselected The elbow is
Ilia_Sergeevich [38]

Answer:

The breast bone is anterior to the spine. The collarbone is superior to the shoulder blade. The elbow is proximal to the wrist. The navel is distal to the chin.

Explanation:

The spine, also known as the backbone, is posterior to the breast bone.

The collarbone (also known as the clavicle), which is part of the shoulder girdle, lies superior in position to the shoulder blade (also known as the scapula).

The elbow is the joint between the arm and the wrist. it is proximal to the wrist.

The navel, located on the anterior abdominal wall, is distal to the chin that is part of the face.

7 0
3 years ago
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