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3 years ago

Which of the following demonstrates a translation?

Physics

2 answers:

RoseWind [281]3 years ago

8 0

<h3>Answer:</h3><h2>(b) Spinning Wheel </h2><h3>Explanation:</h3>

Any move of an object can be assigned to as a transformation. As all point of the target is considered separately, the transformation outlines every point separately and traces how particular is moved or changed.

vampirchik [111]3 years ago

5 0

A spinning wheel and the blade of a kitchen blender both illustrate rotation.

A child swinging on a swing illustrates oscillation, or 'harmonic' motion.

A balloon being blown up is an example of dilation or inflation.

A sliding hockey puck demonstrates the concept of translation.

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a force of 17 acts on a block of mass 4kg the forces of friction opposing the motion is 5n . the acceleration of the block is

Nady [450]

Fk = μK N

N = m a

N = 4 × a

N = 4a

Fk = μK N

17 = 5 × 4a

17 = 20 a

a = ¹⁷/₂₀ = 0.85 m/s²

8 0

2 years ago

What is the speed of an object after falling (from rest) a distance of 9.80 meters near the surface of the Earth? Assume air

madam [21]

Hi there!

We can use the kinematic equation:

$v_f^2 = v_i^2 + 2ad$

vf = Final velocity (? m/s)

vi = initial velocity (0 m/s, dropped from rest)

a = acceleration (due to gravity, 9.8 m/s²)

d = distance (9.8 m)

Simplify the equation to solve for vf:

$v_f^2 = 0 + 2ad\\\\v_f = \sqrt{2ad}$

Substitute in the given values:

$v_f = \sqrt{2(9.8)(9.8)} = \boxed{13.86 m/s}$

8 0

2 years ago

a person with a mass of 75kg jumps on the trampoline the trampoline creates a fprce of 375n on them what is the acceleration of

Anarel [89]

Newton's second law allows calculating the response for the person's acceleration while leaving the trampoline is:

-4.8 m / s²

Newton's second law says that the net force is proportional to the product of the mass and the acceleration of the body

F = m a

Where the bold letters indicate vectors, F is the force, m the masses and the acceleration

The free body diagram is a diagram of the forces without the details of the body, in the attached we can see the free body diagram for this system

$F_t$ -W = m a

Whera $F_t$ is the trampoline force

Body weight is

W = mg

We substitute

$F_t$ - mg = ma

a = $\frac{F_t - m g}{m}$

Let's calculate

a = $\frac{375 - 75 \ 9.8 }{75}$

a = -4.8 m / s²

The negative sign indicates that the acceleration is directed downward.

In conclusion using Newton's second law we can calculate the acceleration of the person while leaving the trampoline is

-4.8 m / s²

Learn more here: brainly.com/question/19860811

7 0

3 years ago

The normal force always points ____ to the two surfaces in contact.

shepuryov [24]

Answer:

A..................

6 0

3 years ago

Which converts mechanical energy to electrical energy?

LiRa [457]

Answer:

c. A Generator

Explanation:

The whole point of a generator is to produce electrical energy. The generator will use a mechanical motor usually running off of gas to produce electricity.

6 0

3 years ago