3 years ago

What does E=MC2 mean

1 answer:

5 0

Answer: 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.

Explanation:

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konstantin123 [22]

Answer: Water fills the bucket until its force/weight is greater than the block’s. The lever tilts over, causing the bucket to water the plant.

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3 years ago

A projectile is fired at an angle such that the vertical component of its velocity

mestny [16]

Answer:

It takes 3 seconds to reach its high point

Explanation:

Projectile Motion

In a projectile motion (or 2D motion), the object is launched with an initial angle θ and an initial velocity vo.

The components of the velocity are

$v_{ox}=v_o\cos\theta$

$v_{oy}=v_o\sin\theta$

The speed in the horizontal direction at any time t is:

$v_y=v_o\sin\theta-g.t$

The time taken to reach the maximum height is when vy=0, or:

$\displaystyle t_m=\frac{v_o\sin\theta}{g}$

We are given the y-component of the velocity, thus:

$\displaystyle t_m=\frac{30~m/s}{10~m/s^2}$

$t_m=3~s$

It takes 3 seconds to reach its high point

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3 years ago

Moira is experiencing noticeable memory loss, muscle loss, and bone loss. What age group is Moira most likely in?

nlexa [21]

Late adulthood is the answer

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3 years ago

Read 2 more answers

1 A truck covers a distance of 580km in 7 hours - Calculate the velocity in km/hr

Digiron [165]

Answer:

82.86

Explanation:

to find velocity you displacement by time

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3 years ago

When checking for noncondensables inside a recovery cylinder why should the technician allow the temperature of the cylinder to

77julia77 [94]

Before taking a pressure reading, it is necessary for the technician to first allow the temperature of the cylinder to stabilize to room temperature because a comparison with a temperature-pressure chart is only valid and true when both temperature and pressure of the refrigerant are stable.

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3 years ago