Three quarterbacks challenged each other to a throwing competition. They want to see who can throw the ball the furthest. What SI unit would be most appropriate to measure the competition? Question 1 options: Celsius Gram Meter Liter

Answers

Answer 1

Answer:

Answer:

Meter

Explanation:

The competition between the three quarterbacks is with respect to how far the ball would be thrown by each person, which is the distance covered by the ball. The thrown ball is an example of projectile, which would move over a certain distance.

With respect to the measure to be used in the competition, the appropriate SI unit is meter. This is the measure of length or distance covered.

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The term “radiation” refers to hot materials inside the Earth rising towards Earth’s surface, cooling, and sinking back down.

A bicyclist is in a 50-km race. He says he had an average velocity of 35. What is missing in the cyclist’s velocity? A. units only B. units and distance C. direction only D. units and direction

Answers

A. Units
the rest can be understand that he did not clarify

What are the important
Characteristics of climate?

Answers

Explanation:

temperature, humidity, atmospheric pressure, wind, and precipitation.

If the distance is halved and the charges of both particles are doubled, the force is ________ as great.

Answers

If the distance is halved and the charges of both particles are doubled, the force is 16 times as great.

Coulomb's Law

According to Coulomb's law, the electrostatic force between two charges is given by;

$F=k(q_1 q_2)/(r^2)$

Where 'k' is the Coulomb's constant.

If the charges of both particles are doubled and the distance is halved, the new force will be;

$F\,'=k(2q_1 * 2q_2)/((r/2)^2)=k (4* 4* q_1 q_2)/(r^2) =16\,F$

So, the new force will be 16 times greater than the old force.

Learn more about Coulomb's law here:

brainly.com/question/14049417

Answer:

The new force is 16 times of the initial force.

Explanation:

The electric force between charges is given by :

$F=(kq_1q_2)/(r^2)$

If the distance is halved, d' =d/2 and charges are doubles, $q_1'=2q_1\ \text{and}\ q_2'=2q_2$

New force becomes,

$F'=(kq_1'q_2')/(r'^2)\n\nF'=(k(2q_1)(2q_2))/((d/2)^2)\n\nF'=16* (kq_1q_2)/(r^2)\n\nF'=16F$

So, the new force is 16 times of the initial force.

How do you calculate the initial speed given time and displacement?The question is: The longest kick in CFL history was 83.2m. If the ball remained in the air for 4.12s, determine its initial speed.
I calculated it several times and got the same answer, 40.38m/s, but the textbook says it's 28.6m/s.

Answers

Let's first find the velocity in the x-direction which is constant.
$d = vt \n v = (d)/(t) \nv = (83.2m)/(4.12s) \n v= 20.2m/s$

Now, we need the velocity in the y-direction
$d = v_(o)t + (1)/(2)a t^(2) \n d - (1)/(2)at^(2) = v_(o)t\nv_(o) = (0 - (1)/(2)(-9.81)(4.12)^(2))/(4.12)\nv_(o) = 20.2m/s$

Finally, we need to put the two velocities together using pythagorean theorem
$v_(t)^(2) = v_(x)^(2) + v_(y)^(2)$
$v_(t) = \sqrt{20.2^(2) + 20.2^(2)}$
v = 28.6m/s

Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an acceleration of 130 m/s2.

Answers

Answer:

F = 18.9 N

Explanation:

m = 0145 kg

a = 130 m^2

F = ma = (0.145kg)(130m/s^2) = 18.9N

a state reached when particles continue to move but in equal amounts in and out of the cell is called

Answers

The state you are referring to is called dynamic equilibrium. In the context of a cell, this means that the concentration of molecules or ions is the same inside and outside the cell,

but particles continue to move across the membrane in both directions at equal rates.

This state is reached when the membrane is selectively permeable and allows for the free diffusion of the particles across the membrane until an equal concentration is reached on both sides.

At dynamic equilibrium, there is no net movement of particles across the membrane, although individual particles continue to move back and forth in both directions.

This is an important concept in cellular physiology, as it allows for the maintenance of homeostasis and proper functioning of the cell.

To know more about dynamic equilibrium refer here

brainly.com/question/2363073#

#SPJ11

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