I don't know how to solve this, can I get a little help?

Answer:special relativity apply to INERTIAL FRAME REFERENCE

Explanation:

inertial frame of reference is the one in which acceleration is zero this means object is moving with constant velocity

Answer:

Measurement

Explanation:

Scientific research require observation and there are two types of observations, quantitative and qualitative observation

Collecting quantifiable data that is possible to be expressed in a number format is said to be a quantitative observation

Quantitative observation can also be described as observations that are defined by both words and numbers and they are therefore more useful than qualitative observations that involve only words

Quantitative observations involve expressions of variables that are quantifiable, that is material hat can be expressed in numbers.

Answer:

Measurement

Explanation:

if you’re doing ck12 it’s the right answer

Answer:

Raul will be 30 meters to the right of observer.  

Explanation:

Raul is walking towards the observer, let be [tex]x[/tex] the position of Raul with respect to the observer and, besides, that [tex]x[/tex] is negative to the left and positive to the right.

Raul is moving at constant rate so that velocity ([tex]v[/tex]) is equal to:

[tex]v = \frac{x_{f}-x_{o}}{\Delta t}[/tex]

Where:

[tex]x_{o}[/tex], [tex]x_{f}[/tex] - Initial and final position of Raul regarding the observer, measured in meters.

[tex]\Delta t[/tex] - Change in time, measured in seconds.

Given that [tex]x_{o} = -15\,m[/tex], [tex]x_{f} = -6\,m[/tex] and [tex]\Delta t = 3\,s[/tex], the velocity of Raul is:

[tex]v = \frac{(-6\,m)-(-15\,m)}{3\,s}[/tex]

[tex]v = +3\,\frac{m}{s}[/tex]

The equation of his displacement is represented by clearing final position in the equation above:

[tex]x_{f} = x_{o}+v\cdot \Delta t[/tex]

If [tex]x_{o} = -15\,m[/tex] and [tex]v = +\frac{3}{5}\,\frac{m}{s}[/tex], the equation of motion is:

[tex]x_{f} = -15\,m + \left(+3\,\frac{m}{s} \right)\cdot \Delta t[/tex]

Then, if [tex]\Delta t = 15\,s[/tex], the final position of Raul regarding the observer is:

[tex]x_{f} = -15\,m + \left(+3\,\frac{m}{s} \right)\cdot (15\,s)[/tex]

[tex]x_{f} = +30\,m[/tex]

Raul will be 30 meters to the right of observer.  

Answer:

Albert Einstein was from Germany he was born theoritical physicist, from childhood only he loved mechanical toys, he was highly gifted in Mathematics, He was a world citizen and a scientific genius too. His contribution were:

1) he developed the theory of relativity

2) he also discovered the process of nuclear fission

3)he developed the quantum theory of specific heat

4)theory of stimulated emission, on which laser device technology is based

5) law of photoelectric effect

hope it helped you :)

Answer:

Mass they are formed with

Explanation:

All stars are born with the same composition such as one quarter of helium, three quarter of hydrogen, and heavier element does not found more than two except their mass. Mass that differ all stars from other stars they born with. How much the mass of a star is large , the star would be as messy.

For example our sun is a star and have large mass four times greater than other living stars. It is found that smallest mass is around 1/12th of sun mass. The masses of a star is determined by its orbit binary. Sun is called a brown dwarf.

Answer: 0.43kg

Explanation: a = 20.8m/s^2

                      F = 8.9N

                      m = ?

F = ma

8.9 = 20.8m

m = 8.9/20.8

= 0.43kg

Hope this helped..

Answer:

mass.

Explanation:

other physical factors are changeable but the mass of a particular substance is always constant.

Answer:

2.5 m/s²

Explanation:

Using the formula, v = u + at ( v = Final velocity; u = Initial velocity; t = Time; a = Acceleration)

25 = 0 + 10a

a = 25/10 = 2.5 m/s²

Answer:

Option (2) : Sixteen times the first cube

Explanation:

[tex]Surface \: Area \: of \: Cube = 6 {a}^{2} [/tex]

[tex] \frac{T.S.A \: of \: larger \: cube}{T.S.A \: of \: smaller \: cube} = \frac{6 \times 16 {l}^{2} }{6 \times {l}^{2} } = 16[/tex]

When the linear dimensions of a solid are multiplied by ' R ', the surface area of all or any part of it increases by R² , and the volume of all or any part of it increases by R³ .

If the sides of the second cube are 4 times the sides of the first one, then the second cube has (4²) = sixteen times the surface area of the first one (2), and it has (4³) = 64 times the volume of the first one.

Answer:

A. 2 kg

Explanation:

[tex]Force = 10N\\Acceleration = 5.0m/s^2\\Mass = ? = x\\Force = mass\times acceleration \\10 = x \times 5\\10 = 5x \\\frac{10}{5} =\frac{5x}{5} \\2=x\\\\Mass= 2kg[/tex]

Answer:

0 J

Explanation:

Work is the dot product of force and displacement.  In other words, it is the force times the distance traveled in the direction of the force.

W = Fd cos θ

In this case, the force is vertical and the displacement is horizontal.  So the angle between them is θ = 90°.  The work done is:

W = (5.0 N) (10.0 m) cos(90°)

W = 0 J

Answer:

5.76 N/m

Explanation:

From the question,

F = BILsinФ...................... Equation 1

and then,

F/L = BIsinФ.................. Equation 2

Where F/L = force per meter, I = current, B = magnetic field, Ф = angle.

Given: B = 0.9 T, I = 6.4 A, and Ф = 90° (Perpendicular)

Subtitute these values into equation 2

F/L = 0.9(6.4)(sin90°)

F/L = 5.76 N/m

The force per meter of length on a straight wire will be 5.76 N/m.

It is the type of field where the magnetic force is obtained. With the help of a magnetic field. the magnetic force is obtained it is the field felt around a moving electric charge.

The given data in the problem si;

B is the megnetic field=0.9 T

I is the current = 6.4 A,

Ф is the angle = 90° (Perpendicular)

The megnetic field is found as;

[tex]\rm F= BILsin \phi \\\\ \frac{F}{L} =BIsin\phi \\\\ \frac{F}{L} =0.9 \times 6.4 \times sin 90^0\\\\ \frac{F}{L} =5.76 / N/m[/tex]

Hence the force per meter of length on a straight wire will be  5.76 N/m.

To learn more about the magnetic field refer to the link;

https://brainly.com/question/19542022

Answer:

The time to reach the maximum height is approximately 4.59 seconds

Explanation:

The maximum height in a problem where friction with the air is neglected, only needs the kinematic information of the initial velocity at which the object was launched vertically.

Recall that the formula for the velocity of an object under constant acceleration ([tex]a[/tex]) in terms of time (t) is given by:

[tex]v(t)=v_0+a\,\,t[/tex]

where [tex]v_0[/tex] is the initial velocity of the object (in our case the speed at which it was launched up in the air = 45 m/s)

Considering that the acceleration the object is subjected (which is the acceleration of gravity g = 9.8 m/s^2) is acting in opposite direction to the initial velocity of the object, we make sure to include a negative sign in the formula:

[tex]v(t)=v_0+a\,\,t=v_0-g\,\,t[/tex]

then, considering that at the time the object reaches its maximum height, is when it stops and starts it motion back towards earth, that is the point at which the object's velocity is zero. Then we can solve for the time as follos:

[tex]0=v_0-g\,\,t\\g\,\,t=v_0\\t=\frac{v_0}{g} \\t=\frac{45}{9.8} \\t\approx 4.59\,\,sec[/tex]

Answer:

255 metres

Explanation:

The answer to thi question is actually quite simple. Since the car goes for 3.4 seconds, and it goes 75 metres every second, the answer is just 3.4 multiplied by 75 Metres.

Answer:

Jesseca wanted to create a material that reflected most of the light that fell on it.

Explanation:

Plato Answer

Answer:

this is the exact answer on Edmentum...

Explanation:

Jesseca wanted to create a material that reflected most of the light that fell on it.

Answer:

2

Explanation:

H2O has -

2 hydrogen atoms

1 oxygen

Answer: 2

Explanation:

Answer:

59g

Explanation:

The tennis ball with a velocity of 18 m/s and momentum of 1.06 kg m/s then the mass of the tennis ball in grams will be 59 grams (approx) two significant figures.

Regardless of the frame of reference, momentum is a conserved quantity in any inertial frame, which means that if an enclosed system is not subject to outside influences, its total linear momentum remains constant.

Additionally, momentum is preserved in general relativity, electrodynamics, quantum mechanics, quantum field theory, and special relativity (using a modified formula). It is a manifestation of translational symmetry, one of the basic symmetries of space and time.

According to the question, the given values are :

Velocity, v = 18 m/s

Momentum, p = 1.06 kg m/s

p = m × v

1.06 kg m/s = m × 18 m/s

m = 1.06 / 18

m = 0.0589 kg or

m = 58.9 grams or 59 grams approx in two significant figures.

So, the mass will be 59 grams.

To get more information about Momentum :

https://brainly.com/question/4956182

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Answer: A- The technology or tools available to test scientific claims. I just took this test and passed.

Answer:

formula F = m * a

Explanation:

F = m * a

F = force = 158 N

m = mass = 23.9 kg

a = acceleration

158 = 23.9 * a

a = 158 / 23.9

a = 6.61m/s²

therefore,  use the formula F = m * a

Answer:

temperature and relative motion

Explanation:

Answer:

a. The Special relativity postulate states that the laws of physics apply  in all inertia frames of reference

b. General relativity must be uses a curved space-time

c. Time is dilated for a stationary observer relative to one in motion

Time interval observed on an object in a moving frame of reference is less than the same interval observed on a stationary reference frame

[tex]\Delta t' = \dfrac{\Delta t}{\sqrt{1 - \dfrac{v^2}{c^2}}}[/tex]

Length is contracted

The length of a rod moving with a velocity relative to an observer will appear contracted by a factor [tex]\sqrt{1 - \dfrac{v^2}{c^2}}[/tex], in the direction of the motion.

Explanation:

Answer:

Density = 0.111 g/cm^3

Explanation:

Given that

Make m = 40g

The given dimension are 30cm by 4cm by 3cm

Volume V = 30 × 4 × 3 = 360 cm^3

Density is the ratio of mass to volume.

That is,

Density = mass/volume

Substitute mass and volume into the formula

Density = 40/360

Density = 0.1111 g/cm^3

Answer:

the radius of the earth in himalayan region is greater than terai reagion. therefore, the value of 'g' at the poles is greater than the value of g at the equator. 12

Explanation:

plz mark as brainlist thx :)

The study of atomic structure helps us understand more about the way the universe is constructed, how our bodies are made, and the components of life, which we can apply to other sciences in the fields of health and disease prevention, fuels, product industry etc... It basically helps us to understand how we can make new things and how to utilize the power of the universe.

Answer: Studying atoms is important because knowledge about atoms helps people to understand the world around them and produce materials used in daily life. Also, research done on atoms has contributed to the improvement of people's lives through medicine, to the protection of the environment, and to the discovery of new things about the world and the universe.

Explanation:

I did the test

Answer:

B

Explanation:

B is the mean position.At the mean position, the velocity of the particle in S.H.M. is maximum and displacement is minimum, that is, x=0. Therefore, K.E. = 1/2 k ( a² – x²) = 1/2 k ( a² – o²) = 1/2 ka². Thus, the maximum kinetic energy is expressed by K.E = ½ ka²

Answer:

Point B is the location of the greatest kinetic energy. This is the point where the pendulum is moving with the greatest velocity.

Explanation: