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steposvetlana [31]
3 years ago
10

6. What is Mass????????????????

Physics
1 answer:
maria [59]3 years ago
8 0
Mass is a measure of the amount of matter in an object !!
hope this helpeddd (:
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What is the density of a block of wood with a mass of 120 g and a volume of 200 cm
creativ13 [48]
D=m/V therefore the answer is 120/200 or 0.6
7 0
2 years ago
Use the information from the graph to answer the question. What is the acceleration of the object
Art [367]

Answer:

-2.5 m/s²

Explanation:

The acceleration of a body is the change in it's velocity with time.

The change in velocity with time can be obtained as the slope of a velocity time graph ;

Acceleration = (change in velocity / change in time)

Taking the slope :

Change in Velocity = △y = y2 - y1

Change in time = △x = x2 - x1

(10, 15) ; (0, 40)

△y / △x = y2 - y1 / x2 - x1 = (40 - 15) / (0 - 10)

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An apple with mass 0.4 kg is hanging at rest from the lower end of a light vertical rope. A dart of mass 0.1 kg is shot vertical
Sholpan [36]

Answer:

The speed of the apple just after the collision is 1m/s

Explanation:

Since the two bodies collided, we will apply the law of conservation of momentum to find their common velocity which states that the sum of momentum of the bodies before collision is equal to the sum of momentum of the bodies after collision. After collision both bodies will move with a common velocity v.

Given momentum = mass × velocity

Initial momentum of the 0.4kg apple hanging at rest will be;

Momentum = 0.4kg×0m/s = 0kgm/s (the velocity of apple is 0m/s since it is hanging at rest)

Initial momentum of the 0.1kg dart moving with speed of 5m/s will be;

Momentum of dart = 0.1kg × 5m/s

Momentum of dart = 0.5kgm/s

Momentum of the bodies after collision will give;

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Momentum after collision = 0.5v

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0+0.5 = 0.5v

0.5 = 0.5v

v = 0.5/0.5

v = 1m/s

Therefore the speed of both bodies after collision is 1m/s which will also serve as the speed of the apple after collision.

5 0
3 years ago
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Answer:

use the kinematics equations and solve for time, after that use dleta dx=Vi*delta time

8 0
3 years ago
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Calculate the frequency of yellow light with a wavelength of 580x10 to the -9
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5.2x10¹⁴ hz is your answer.
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