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Ivenika [448]
3 years ago
10

Kinetic energy portfolio in part 2 the independent changes to----?

Physics
1 answer:
Anon25 [30]3 years ago
5 0
Where is the “part 2” to view ?
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group of students is making model cars that will be propelled by model rocket engines. These engines provide a nearly constant t
iris [78.8K]

Answer:

increase.

Explanation:

According to the newton’s second law of motion force is expressed as product of mass and acceleration.

F = m a

If the force acting is constant, then.

m∝ \frac{1}{a}

That is if the mass of object increases the acceleration decreases and vice versa. The above equation is used when the force acting on the body is constant.

As the thrust force from the rocket engine is constant throughout there will be a variation in the mass or acceleration.

Thus, it won't stay the same.

As the weight of the car is maximum at the start because of the fuel present in the rocket engine and minimum at the end as the fuel burns throughout the journey of the car. Weight will be minimum at the end and hence acceleration is maximum at the end.

Thus, it won't decrease.

As the acceleration is going from minimum at the start to maximum at the end, therefore it is continuously increases throughout its journey.

Thus, it will increase.  

7 0
3 years ago
What storm causes flash floods? <br> Tornado <br> Thunderstorm<br> Hurricane
Mariulka [41]

Answer:

hurricane.

Explanation:

............................

8 0
3 years ago
1. Name two ways of applying forces ?​
Anna007 [38]

Answer: A force can be applied to another object by a direct push, pull, or drag.

Explanation:

4 0
2 years ago
Read 2 more answers
Part of one row of the periodic table is shown. Which element’s atoms have the greatest average number of neutrons?
Zanzabum

Number of neutrons of the elements can be calculated if the atomic number and mass number is known.

As, Number of neutrons= Mass number- Atomic number

For Tin(sn), the mass number is 119 and atomic number is 50, then

Number of neutrons= 119-50=69

For Antimony(sb), the mass number is 122 and the atomic number is 51, then

Number of neutrons=122-51=71

For Tellurium(te), the mass number is 128 and atomic number is 52,then

Number of neutrons=128-52=76

Fro Iodine(I), the mass number is 127 and the atomic number is 53, then

Number of neutrons=127-53=74

Since, the number of neutrons are large in Tellurium, therefore Tellurium have the greatest average number of neutrons.

8 0
3 years ago
Read 2 more answers
The mass of a cube of iron is 250. g. iron has a density of 7.87 g/cm3. what is the mass of a cube of lead that has the same dim
Step2247 [10]
<span>density of lead = 11.34 g/cm^3 </span>
<span>mass = density x volume = 11.34 g/cm^3 x 45.3 = 513.7 g is the mass of a cube of lead</span>
7 0
3 years ago
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