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3 years ago

A baseball rolls across the grass until it eventually comes to a stop. What happens to the ball's kinetic energy

Mathematics

2 answers:

svlad2 [7]3 years ago

8 0

It changes to thermal energy.

Romashka-Z-Leto [24]3 years ago

4 0

Step-by-step explanation:

The baseballs kinetic energy changes into friction.

The baseball is rolling which is having kinetic energy.

And as it rolls in the ground covered with thick grass, frictional force treis to act on the baseball. This frictional force tends to stop the ball by applying a force in the opposite direction to the motion of the moving ball. Thus the ball is eventually stopped by the frictional force acting on it when it rolls on the ground.

This is according to the Newtons 1st law of motion which says that force is required to stop or start a motion.

Thus, the baseball's kinetic energy is converted into frictional energy or force.

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Elanso [62]

Answer:

1,256 dm^2 and 400π dm^2

Step-by-step explanation:

The circumference is equal to 2pi times the radius. So 40pi=2pi times the radius so the radius is 20. The area of a circle is pi times the radius squared or 400pi and if using 3.14 for pi this would be 1,256 dm^2

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1 year ago

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2 years ago

The function f(x)=2x−5 is a linear function. Let g(x) represent f(x) after a horizontal translation 3 units to the right.

Ray Of Light [21]

Answer:

the equation of g(x) is, $g(x) = 2x-11$

Step-by-step explanation:

The transformation of the function is defined as:

$g(x)=f(x+b)$

where, b represents the horizontal shift.

if b> 0 then, the function f(x) shifts b units left and if b< 0 ; then the function shifts b units right

As per the statement:

The function f(x)=2x−5 is a linear function.

It is given that:

g(x) represent f(x) after a horizontal translation 3 units to the right.

⇒ $g(x) =f(x-3)$

then

$g(x) = 2(x-3)-5$

⇒ $g(x) = 2x-6-5$

⇒ $g(x) = 2x-11$

Therefore, the equation of g(x) is, $g(x) = 2x-11$

8 0

3 years ago

Someone plz help me

marusya05 [52]

This is a parabola which looks like an inverted U. Its will have a maximum value when t = 7 as we see from the vertex form below:-

- t^2 + 14t - 40
= - ( t - 7)^2 + 49 - 40
= -(t - 7)^2 + 9

There is an axis of symmetry at x = 7.

so a is true since 7 is the maximum value of the function and its less at t = 6.
c is also true because of the symmetry about t = 7

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3 years ago

An above ground swimming pool is leaking after 1 and 1/2 hours the pool has leaked 7/8 of a gallon of water how many gallons of

Aleksandr [31]

Answer:

In 1 hour the amount of water leaking from pool = $\frac{7}{12}$ gallon of water

Step-by-step explanation:

Given as :

The amount of Leaking of water from the pool = $\frac{7}{8}$ gallon

The time taken fro leaking $\frac{7}{8}$ gallon of water = 1 $\frac{1}{2}$ gallon hour

Or The time taken fro leaking $\frac{7}{8}$ gallon of water = $\frac{3}{2}$ hour

∵ $\frac{3}{2}$ hour takes for leaking $\frac{7}{8}$ gallon of water

∴ In 1 hour the amount of water leaking from pool = $\frac{7}{8}\setminus \frac{3}{2}$

Or, In 1 hour the amount of water leaking from pool = $\frac{7}{12}$ gallon of water Answer

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3 years ago