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3 years ago

Write three things that

1 answer:

5 0

1. A lamp can transfer energy through light and thermal energy, fire, and a radiator.
2. A tuning fork can transfer sound energy/vibration throughout a medium, speaker, and a piano.
3. A heart works by electrical energy produced from chemical energy within the body, computer, and a phone.

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Which is a process that involves collecting information and ideas that are supported by belief or opinion?

Illusion [34]

Science is a process that involves the collection of information and ideas supported by evidence. Pseudoscience on the other hand, is a process that involves the collection of information and ideas supported by belief or opinion.

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3 years ago

The planet Mars has a mass of 6.1 × 1023 kg and radius of 3.4 × 106 m. What is the acceleration of an object in free fall near t

Oksanka [162]

The acceleration due to gravity of Mars is $3.5\ m / s^{2}$

<u>Explanation:</u>

As per universal law of gravity, the gravitational force is directly proportional to the product of masses and inversely proportional to the square of the distance between them. But in the present case, the gravity need to be determined between Mars and the object on Mars. Since the mass of Mars is greater than the mass of any object. Thus,

$\text {Gravitational force of planet}=\frac{G M m}{R^{2}}$

Here, G is the gravitational constant, R is the radius of Mars and M, m is the mass of Mars and the object respectively..

Also, according to Newton’s second law of motion, the acceleration of any object will be equal to the ratio of force exerted on it to the mass of the object.

So in order to determine the acceleration due to gravity of Mars, divide the gravitational force of Mars by mass of object on the surface of Mars.

$Acceleration\ due\ to\ gravity\ of\ mars =\frac{\text {Gravitational force of Mars}}{m \text { of object }}$

$Acceleration\ due\ to\ gravity\ of\ mars =\frac{G M m}{R^{2} \times m}=\frac{G M}{R^{2}}$

$\text { Acceleration due to gravity of mars }=\frac{6.67259 \times 10^{-11} \times 6.1 \times 10^{23}}{3.4 \times 3.4 \times 10^{12}}=\frac{40.703 \times 10^{12}}{11.56 \times 10^{12}}$

$\text { Acceleration }=3.5\ \mathrm{m} / \mathrm{s}^{2}$

3 0

3 years ago

Give an example of Newton's second law in everyday life?

Marat540 [252]

That’s the acceleration law! This would be a good example of inertia! When in a car, if the brakes are pressed immediately, the passengers will launch forward since their bodies are still in motion!

7 0

3 years ago

Mind being a helping hand? I know ABSOLUTELY nothing about air resistance.. It's still science for me so I guess I'll put it as

Contact [7]

Answer:

the first one would

Explanation:

air resistance and the second would be gravity or mass

if you need an explanation ask

8 0

3 years ago

A box at rest is in a state of equilibrium half way up on a ramp. The ramp has an incline of 42° . What is the force of static f

olchik [2.2K]

Answer:

Explanation:

The force of static friction acting on the box is the frictional force;

Frictional force Ff = Wsin theta (force acting along the ramp)

W is the gravitational force known as the weight

Ff = 112.1sin42°

Ff = 112.1(0.6691)

Ff = 75.00N

Hence he force of static friction acting on the box if box has a gravitational force of 112.1 N id 75.00N

4 0

3 years ago