PHYSICS HIGH SCHOOL

You kick a ball with a speed of 18 m/s at an angle of 32 degrees. How far does the hall land?

Answers

Answer 1
Answer: You kick a ball with a speed of 18 m/s at an angle of 32 degrees. How far away does the ball land? 
d = V^2/g*sin(32*2) = 18^2/9.8*0.90 = 29.72 m
Answer 2
Answer:

Answer:

29.7m

Explanatio

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Acceleration occurs whenever an ___________________ force acts on an object.

Answers

Acceleration occurs whenever the forces on an object are unbalanced.

It's the group of forces on the object that's either balanced or unbalanced.
There's no such thing as "an unbalanced force".
Acceleration is known to occur whenever an unbalanced force acts on an object.

Imagine two billiard balls on a pop table. Ball A has a mass of 7 kilograms and ball B has a mass of 2 kilograms. The initial velocity of the ball A is 6 meters per second to the right, and the initial velocity of the ball B is 12 meters per second to the left.1. When the two balls hit each other, what will happen if it is a perfectly inelastic collision?

Answers

i think they wont bounce back......

What is the power of 10 when 0.000028 is written in scientific notation

Answers

For this case, the first thing we must do is define the scientific notation.

We have then:

Scientific notation is a way of writing numbers too big or small in a conventional way.

A number written in scientific notation has the following form:

Where,

m: it is called matinsa

e: it is the order of magnitude

Therefore, for the given number we have that the scientific notation is:

Answer:

the power of 10 when 0.000028 is written in scientific notation is:

-5
2.8x10 to the power of -5

Which statement below is correct?A.
The Moon revolves around the Sun, but the Earth does not.

B.
The Earth-Moon system revolves around the Sun.

C.
The Earth revolves around the Sun-Moon system.

D.
The Sun revolves around the Earth-Moon system.

Answers

The correct answer is:

(B) The Earth-Moon system revolves around the Sun.

Because the Earth revolves around the sun while the Moon revolves around the Earth.
B. THE EARTH AND MOON REVOLVES AROUND THE SUN

A substance has a melting point of 0 degrees celsius and a boiling point of 100 degrees celsius. The substance is most likelya. water
b. hydrogen
c. gold
d. table salt

Answers

water. These physical properties are specific to water.

Two objects attract each other gravitationally with a force of 3.0×10−10N when they are 0.45m apart. Their total mass is 4.0kg . find the individual masses

Answers

If everything is in meters and kilograms, then the gravitational force
between 2 masses is

F = G M₁ M₂ / R²

G = 6.67 x 10⁻¹¹
M₁ and M₂ =  the masses of the two masses
R = the distance between their centers.

When we plug in 3 x 10⁻¹⁰ for the force, and 0.45 for the distance,
we get the product of the 2 objects  M₁M₂ = about 0.911 , and
that's as far as we can go without some more information.

The question says that the two masses add up to 4.0 kg.
So now we know that M₁M₂ = about 0.911 and (M₁ + M₂) = 4.0 kg.
With this, we immediately step into a big squishy quadratic equation,
whose solutions are:

one mass = 3.758 kg
the other mass = 0.242 kg .
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