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ser-zykov [4K]
3 years ago
12

Define relative motion??​

Physics
1 answer:
kolezko [41]3 years ago
8 0

Answer:

The laws of physics which apply when you are at rest on the earth also apply when you are in any reference frame which is moving at a constant velocity with respect to the earth. For example, you can toss and catch a ball in a moving bus if the motion is in a straight line at constant speed.

Explanation:

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Twopucksofequalmasscollideonafrictionlesssurface,asillustratedinthefigure.Immediatelyafterthe collision, the speed of the black
seropon [69]

Answer:

The speed of the white puck immediately after the collision is 2.6 m/s.

Explanation:

Given that,

Two pucks are equal masses.

Speed of black puck = 1.5 m/s

According to given figure,

We need to calculate the speed of the white puck immediately after the collision

Using law of conservation of momentum

mv=m_{1}v_{1}\cos\theta+m_{2}v_{2}\cos\theta

Put the value into the formula according to figure

m\times3=m\times v_{1}\times\cos30+m\times1.5\times\cos60

3m=0.866m v_{1}+0.75m

v_{1}=\dfrac{3-0.75}{0.866}

v_{1}=2.6\ m/s

Hence, The speed of the white puck immediately after the collision is 2.6 m/s.

8 0
3 years ago
Describe the motion of an object that has an elephant acceleration of 0 mi./s squared
Scorpion4ik [409]
The object does not move.
8 0
3 years ago
The following equation is an example of decay?<br><br> 232/90 TH---4/2 HE +228/88 RA?
DaniilM [7]

Answer:

Alpha decay

Explanation:

  • Alpha decay is one of the three major types of decays, others being, beta decay and gamma decay.
  • <em><u>When a radioactive isotope undergoes alpha decay it emits alpha particles. An alpha particle is equivalent to the nucleus of Helium atom.</u></em>
  • <em><u>Therefore, an atom undergoing decay, its atomic mass is decreased by 4 and its atomic number is decreased by 2. </u></em>
  • Thus, since 232/90 Th, has undergone alpha decay its mass number is reduced by 4 to 228 and its atomic number by 2 to 88, and becomes 228/88 Ra.
5 0
3 years ago
Two identical spheres carry charges of +0.6 coulomb and -0.2 coulomb, respectively. If these spheres touch, the resulting charge
masya89 [10]

Answer:

2. +0.2 C

Explanation:

When the two spheres touch, the total charge will be redistributed such that the two spheres are at same potential:

V_1 = V_2

The potential can be rewritten as ratio between the charge on the sphere (Q) and the capacitance of the sphere (C):

\frac{Q_1}{C_1}=\frac{Q_2}{C_2}

Since the two spheres are identical, they have same capacitance:

C_1 =C_2=C

So we can write

\frac{Q_1}{C}=\frac{Q_2}{C}

Q_1=Q_2

And since the total charge is

Q=+0.6 C-0.2 C=+0.4 C

And this charge will be redistributed equally on the two spheres (Q_1 = Q_2), we have

Q_1 = Q_2 = \frac{Q}{2}=\frac{+0.4 C}{2}=+0.2 C

5 0
4 years ago
What is characteristic of both sound waves and
REY [17]
"<span>(2) They transfer energy" is the best option from the list regarding the </span>characteristics of both sound waves and <span>electromagnetic waves, but these energies are different. </span>
5 0
4 years ago
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