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Tju [1.3M]
3 years ago
6

What is meant by E= mc²?​

Physics
2 answers:
IrinaVladis [17]3 years ago
7 0

Answer:

it means energy is equivalent to the product of the mass of an object and the square of the speed of light.

borishaifa [10]3 years ago
4 0

Answer:

<em>Einstein's Big Idea homepage. E = mc2. It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.</em>

Explanation:

<u>hope it helps</u>

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It would mean that only one side of earth would be light and the other dark all the time also we would only see the sun on one side and on the other we see the moon
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4 0
3 years ago
A projectile, fired with unknown initial velocity, lands 20sec later on side of hill, 3000m away horizontally and 450m verticall
lorasvet [3.4K]

Explanation:

Given:

t = 20 seconds

x = 3000 m

y = 450 m

a) To find the vertical component of the initial velocity v_{0y}, we can use the equation

y = v_{0y}t - \frac{1}{2}gt^2

Solving for v_{0y},

v_{0y} = \dfrac{y + \frac{1}{2}gt^2}{t}

\:\:\:\:\:\:\:=\dfrac{(450\:\text{m}) + \frac{1}{2}(9.8\:\text{m/s}^2)(20\:\text{s})^2}{(20\:\text{s})}

\:\:\:\:\:\:\:=120.5\:\text{m/s}

b) We can solve for the horizontal component of the velocity v_{0x} as

x = v_{0x}t \Rightarrow v_{0x} = \dfrac{x}{t} = \dfrac{3000\:\text{m}}{20\:\text{s}}

or

v_{0x} = 150\:\text{m/s}

4 0
3 years ago
A father wants his son to start helping his mother do the do laundry. According to social learning theory, the father should
telo118 [61]

Answer:

Help out with the laundry himself.

Explanation:

In social learning theory, it's a process where people tend to observe the actions of others and then imitate them.

Now, since this father wants to teach his son to start helping his mother do the do laundry, what he can do according to social learning theory is to help with the laundry himself first.

8 0
3 years ago
Starting from one oasis, Thaïs and Athanaël walk 25 km in a direction 30° south of west and then walk 30 km toward the north to
Fudgin [204]

Answer:

= 51° West of North

Explanation:

The displacement along the horizontal direction

R_x = -(25km)cos 30^\circ i\\\\= -(21.65km)i

The displacement along the vertical direction

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R = \sqrt{(-21.65km)^2 + (17.5km)^2} \\

The direction is

\theta = tan^-^1(\frac{17.5km}{-21.65km} )\\\\= -38.9^\circ\\\\

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3 0
3 years ago
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