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lukranit [14]
3 years ago
9

IF YOU GOOD AT SCIENCE PLEASE ANSWER THIS ASAP

Physics
2 answers:
Yuri [45]3 years ago
6 0

Answer:

THE STUDY OF MATTER AND ENERGY

Explanation:

xz_007 [3.2K]3 years ago
4 0

Answer:

I would believe that it would be the last option

Explanation:

Physical science is a type of science that mainly focuses on natural objects that are not alive, such as minerals and rocks.

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6. As the sky diver's fall the______energy is converted into _______.
notka56 [123]

Answer:  B

D makes no sense because energy is created so we can remove that. C also makes no sense because if energy is not created how did it get destroyed if there's no energy in the first place. This leaves us with a and B the correct answer is B because energy is created and cannot be destroyed.

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3 years ago
Birds that are active soon after hatching are called
kotegsom [21]
Altricial..........
3 0
4 years ago
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What does the area between the line and the x-axis represent on a velocity vs. time graph?
Finger [1]

Answer:

It has been learned in this lesson that the area bounded by the line and the axes of a velocity-time graph is equal to the displacement of an object during that particular time period. ... Once calculated, this area represents the displacement of the object.

Explanation:

7 0
3 years ago
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A car (mass 1200 kg, speed 100 km/h) and a truck (mass 2800 kg, speed 50 km/h) are moving in the same direction along a highway.
Sloan [31]

Answer:

Speed of the wreck after the collision is 65 km/h

Explanation:

When a car hits truck and sticks together, the  collision would be totally inelastic.  Since the both the vehicles  locked  together, they have the same final velocity.

Mass of car  m_{1}=1200 kg

Mass of truck m_{2}=2800 kg

Initial speed of the car u_{1}=100 km /h

Initial speed  of the truck u_{2}=50 km /h

The final velocity of the wreck will be

m_{1}u_{1}+m_{2}u_{2}=m_{1}v_{1}+m_{2}v_{2}

since final speed are same, v_{1}=v_{2}=v

m_{1}u_{1}+m_{2}u_{2}=(m_{1}+m_{2})v

1200\times 100 +2800 \times 50 =(1200+2800)v\\v=\frac{260000}{4000} \\v=65 km/h

5 0
3 years ago
Justin drives his unicycle 7.0 m/s northward. How long will it take him (in seconds) to travel 12 km?
Aleksandr-060686 [28]

Answer:

The time required is 28.5 [min]

Explanation:

We can find the time using the kinematic equation, but first, we must convert the distance to travel in meters.

x = distance = 12 [km] = 12000 [m]

velocity = 7 [m/s]

Tt = \frac{x}{v} \\t=\frac{12000}{7} \\t=1714 [s] = 28.5 [min]

7 0
3 years ago
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