A model rocket accelerates at 15.3 m/s2 with a force of 44 N.Calculate the mass of the rocket. Round your answer to the nearest tenth of a kg.

The mass of the rocket is
kg.

Answers

Answer 1

Answer:

The mass of the rocket is 2.9 kg.

To calculate the mass of the rocket, you can use Newton's second law of motion, which relates force (F), mass (m), and acceleration (a) as F = ma. In this case, you have the force (44 N) and the acceleration (15.3 m/s²).

Rearrange the formula to solve for mass:

m = F / a

m = 44 N / 15.3 m/s² ≈ 2.9 kg

So, the mass of the rocket is approximately 2.9 kilograms. The mass is rounded to the nearest tenth of a kilogram as specified in the question. This mass represents the amount of matter in the rocket and is a critical factor in determining how the rocket accelerates when subjected to the given force.

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Answer 2

Answer:

Answer:

2.9

Explanation:

In the equation you get 2.88 but you round that to the nearest tenth so you get 2.9

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Is it possible to change the translational kinetic energy of an object without changing its rotational energy?

Answers

Yes, it is possible to change the transitional kinetic energy of an object without changing its rotational energy. For example dropping a spinning ball into the side of the table, the ball will keep its rotational motion while its transitional kinetic energy is changing.

organisims that have a physical trait that makes it easier for them o access food supply are unlikely to pass on that trait to their offsprings

Answers

The answer then is false, if it has a trait that will help it survive in its environment then it will pass on the trait to its offspring.

Answer: FALSE

Explanation:

EGDE 2021

Describe two reasons why an alpha particle is less penetrating than a beta or gamma particle.

Answers

Alpha particles travel through the air they collide with oxygen and nitrogen molecules. While they collide with these molecules, they lose some energy until all energy are used up and they are absorbed. These particles can be absorbed by a sheet of paper or by the air. On the other hand, beta particles and gamma particles move faster than the alpha particles and are poor at ionizing atoms or molecules thus it takes more of the material to be able to absorb these particles.

Answer:

1. Heavy mass

2. greater charge

Explanation:

An alpha particle has two protons and two neutrons. It has +2 e charge. It is a heavy mass particle. Thus, when it tends to penetrate even a thin sheet, it loses its energy very quickly because of its interaction with the material particles.

Beta particle is a high energy electron or positron. It carries 1 unit charge and has very less mass in comparison to an alpha particle. Thus, it has more penetrating power than alpha particle.

A gamma particle is charge less and mass less highly energetic particle. Thus, it has highest penetrating power.

A ball is thrown at 60 degrees and lands in 18.5 seconds what is the velocity of the ball at the start

Answers

Answer:

the initial velocity of the ball is 104.67 m/s.

Explanation:

Given;

angle of projection, θ = 60⁰

time of flight, T = 18.5 s

let the initial velocity of the ball, = u

The time of flight is given as;

$T = (2u* sin(\theta))/(g) \n\n2u* sin(\theta) = Tg\n\nu = (Tg)/(2* sin(\theta)) \n\nu = (18.5 * 9.8)/(2* sin(60^0)) \n\nu = 104.67 \ m/s$

Therefore, the initial velocity of the ball is 104.67 m/s.

What are the Vedas?a) priests

b) religious writings

c) writings of the Buddha

d) Hindu gods

Answers

Answer:

B religious writing

Explanation:

The Vedas are a large body of religious texts originating in ancient India. Composed in Vedic Sanskrit, the texts constitute the oldest layer of Sanskrit literature and the oldest scriptures of Hinduism. Hindus consider the Vedas to be apauruṣeya, which means "not of a man, superhuman" and "impersonal, authorless

2.Which of the following gear speeds
makes motor vehicle move faster?
a) 0
b) 11
c) 2
d) 3
e) 4