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3 years ago

What is motion ,terms used to measure motion ,examples etc

Physics

2 answers:

Musya8 [376]3 years ago

8 0

Answer:

A physic term

Explanation:

yulyashka [42]3 years ago

5 0

Answer:

Cambio de lugar o de posición de un cuerpo en el espacio.

Explanation:

You might be interested in

You operate a 120 w light bulb for 5 minutes. how much energy did you use?

timurjin [86]

Answer:

Energy use by bulb = 36 kJ

Explanation:

Power of bulb = 120 W

Time of working = 5 minutes =5 x 60 = 300 seconds.

Power = Work / Time

Work = Power x Time

= 120 x 300

= 36000 J = 36 kJ

So. energy use by bulb = 36 kJ

3 0

3 years ago

What is the wavelength of an X-ray photon with energy 8.0 keV (8000 eV)? (1 eV = 1.60 × 10−19 joule.)

katrin2010 [14]

Answer:

Wavelength = 0.15 nm

Frequency = $1939.3939\times 10^{15}Hz$

Explanation:

We have given photon energy E = 8 KeV = 8000 eV

In question it is given that $1eV=1.6\times 10^{-19}J$

So $8000eV=1.6\times 8000\times 10^{-19}=12800\times 10^{-19}j$

Plank's constant $h=6.6\times 10^{-34}js$

We know that photon energy is given by $E=h\nu$

So $12800\times 10^{-19}=6.6\times 10^{-34}\nu$

$\nu =1939.3939\times 10^{15}Hz$

Now wavelength $\lambda =\frac{c}{f}=\frac{3\times 10^8}{1939.3939\times 10^{15}}=0.0015\times 10^{-7}m=0.15nm$

3 0

4 years ago

Which describes the relationship between potential and kinetic energy of a ball thrown up in the air as it falls back to the gro

Gekata [30.6K]

The answer is c, because ball is falling so its gravitationl potential energy decreases, but it kinetic energy increases. Energy is always conserved.

7 0

3 years ago

The graph below represents the relationship between the force exerted on an elevator and the distance the elevator is lifted.

Stella [2.4K]

I have three problems with this question.

#1). If you copied the question exactly the way it's written,
then the question is written very badly. The wording is
misleading, and the more you try to think about it and
puzzle it out, the more it'll damage your understanding
of Physics.

There is no relationship between the force exerted on an
elevator and the distance the elevator is lifted.

-- If the force is anything more than the weight of the elevator ...
even one ounce more ... then it'll lift the elevator as high as
you want.

-- If the force is anything less than the weight of the elevator ...
even one ounce less, then that elevator is headed for the bottom.

#2). You didn't post any graph below, so if we need the graph
to answer the question, then we can't answer the question.

#3). I guess that's OK, because you didn't ask any question.

8 0

3 years ago

What is the net force needed to accelerate a 5 kg object at 3 m/s2? Suppose that in this situation you discovered that there is

Rudik [331]

The Force need to accelerate the object is by 3 m/s² is 15 N. Suppose a friction force of 5 N acts on the motion of the object, the force needed to be applied to the object is 20 N

<h3>Force:</h3>

This can be defined as the product of the mass and the acceleration of a body. The S.I unit of force is kgm/s or Newton(N)

To calculate the force needed to accelerate a mass of 5 kg object at 3 m/s² we use the formula below.

Formula:

F = ma........ equation 1

Where:

F = Net force needed to accelerate the object
m = mass of the object
a = acceleration of the object

From the question,

Given:

m = 5 kg
a = 3 m/s²

Substitute these values into equation 1

F = 5(3)
F = 15 N

Suppose a frictional force of 5 N acts on the motion, The force applied is

F = F'+ma............ Equation 2

Where:

F = Frictional force = 5N

Substitute into equation 2

F = 5(3)+5
F' = 15+5
F = 20 N.

Hence, The Force need to accelerate the object is by 3 m/s² is 15 N. Suppose a friction force of 5 N acts on the motion of the object, the force needed to be applied to the object is 20 N

Learn more about force here: brainly.com/question/12970081

4 0

3 years ago