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3 years ago

Write three sentences on Choked by bacteria, some starfish are turning to goo

Physics

1 answer:

Maslowich3 years ago

3 0

Answer:

Some amoebas carry bacteria that protect them from harm. ... They can switch back and forth between an amoeba form and some other form.

Explanation:

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If it is June or July and you live in the southern hemisphere, describe the position of the Earth, in relation to the sun, and w

netineya [11]

If it's June or July, then Earth's North Pole will face the "SUN" & South pole doesn't get it during that time. Just because of that, Sun doesn't appear in the southern hemisphere, and you would experience very Cold climate.

Hope this helps!

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3 years ago

If he leaves the ramp with a speed of 31.0 m/s and has a speed of 29.5 m/s at the top of his trajectory, determine his maximum h

raketka [301]

Answer:

The maximum height reached is 4.63 m.

Explanation:

Given:

Initial speed of the man (u) = 31.0 m/s

Speed at the top of trajectory ( $u_x$ ) = 29.5 m/s

Acceleration due to gravity (g) = 9.8 m/s²

When the man reaches the top of the trajectory, the vertical component of velocity becomes zero and hence only horizontal component of velocity acts on him.

Also, since there is no net force acting in the horizontal direction, the acceleration is zero in the horizontal direction from Newton's second law. Thus, the horizontal component of velocity always remains the same.

So, speed at the top of trajectory is nothing but the horizontal component of initial velocity.

Now, initial velocity can be rewritten in terms of its components as:

$u^2=u_x^2+u_y^2$

Where, $u_x\ and\ u_y$ are the initial horizontal and vertical velocities of the man.

Now, plug in the given values and simplify. This gives,

$(31.0)^2=(29.5)^2+u_y^2\\\\961=870.25+u_y^2\\\\u_y^2=961-870.25\\\\u_y^2=90.75\ m^2/s^2--------1$

Now, we know that, for a projectile motion, the maximum height is given as:

$H=\frac{u_y^2}{2g}$

Plug in the value from equation (1) and 9.8 for 'g' to solve for 'H'. This gives,

$H=\frac{90.75}{2\times 9.8}\\\\H=4.63\ m$

Therefore, the maximum height reached is 4.63 m.

3 0

4 years ago

At an age of 380,000 years, the temperature of the universe had fallen to 3000 k, and electrons could then combine with protons

Andru [333]

The major transition occurred is that the universe became transparent to light for the first time. This is the consequence that might happen because of the changes in the universe at this time. The reaction between the elements that are present in the space can affect the present universe.

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3 years ago

Which two vectors, when subtracted (i.e., when one vector is subtracted from the other), will have the largest magnitude?

FromTheMoon [43]

Given: Please see the attached image below.

To be able to subtract vectors, we can either use the parallelogram method or the triangle method. Take note that the only difference is that alternatively adding vectors A and B, we will instead be adding A and – B. When we ponder of vector subtraction, we must anticipate about it in terms of adding a negative vector. A negative vector has the same magnitude as the original vector, however, it has an opposite direction.

So in this problem, the two vectors that will have the largest magnitude are A & F when subtracted (i.e., when one vector is subtracted from the other).

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4 years ago

The Federal Communications Commission (FCC) has considered lifting the ban on in-flight cell phone use. This could allow people

olga nikolaevna [1]

I would say that there shouldn't be any calls on a plane while in-flight because you never know what someone is calling for. It can lead to a bad situation like 9/11 or any form of terrorism.

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4 years ago

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