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PIT_PIT [208]
3 years ago
8

A ball thrown vertically upward reaches a certain height and comes down again. What can you say about its kinetic energy at the

maximum height?
It is independent of the height.
It is at its minimum but is not zero.
It is at its maximum.
It is zero.
Physics
2 answers:
MrRissso [65]3 years ago
4 0
The K.E. at the maximum height is zero, no matter what that height is.
stellarik [79]3 years ago
3 0
The kinetic energy at the maximum height is zero
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a 12.0L container is filled with a gas to a pressure of 2660 torr at 0°C. At what temp. will the pressure inside the container b
Alexxx [7]
\frac{p1}{t1} = \frac{p2}{t2}

Pressure Law: constant volume

Convert all Temperatures to Kelvin

0°C= 273K

\frac{2660}{273} = \frac{3040}{t2} \\ \\ 3040 \times 273 = t2 \times 2660 \\ \\ 829920 \div 2660 = t2 \\ \\ t2 = 312

answer= 312Kelvin
6 0
4 years ago
A boy is pulling a wagon with a force of 70.0 N directed at an angle of 30 degrees above the horizontal. What are the x and y co
bogdanovich [222]

Answer:

x component is 60.60 N and y component is 35 N ⇒ answer A

Explanation:

A boy is pulling a wagon with a force of 70.0 N directed at an angle

of 30 degrees above the horizontal then,

F_{x} is the horizontal component of the force in the direction

of positive part of x-axis

F_{y} is the vertical component of the force force in the direction

of positive part of y-axis

The x component of the force F_{x} is the force multiplied by

cos(30)°

The y component of the force F_{y} is the force multiplied by

sin(30)°

→ The x component F_{x} =  F cos(30)

→ The x component F_{x} = 70 cos(30) =  60.60 N

→ The y component F_{y} = F sin(30)

→ The y component F_{y} = 70 sin(3) = 35 N

<em>x component is 60.60 N and y component is 35 N</em>

7 0
4 years ago
The apartment’s explosion, reportedly caused by a gas leak, produced a violent release of gas and heat. The heat increased the _
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Increased the temperature in the room, which means an increase in the airs connect molecular energy
7 0
3 years ago
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What is hemispheric specialization?
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It is the study of cognitive functions.
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3 years ago
A footballer kicks a ball at angle teta to horizontal with some initial velocity a) what are the two types of independent motion
Nezavi [6.7K]

a) The motion along the vertical direction and the motion along the horizontal direction.

b) The object remains in the air for a time period of 2usin(θ)/g.

Any object that is thrown in the air when gravity is acting on it is called a projectile. The motion of this projectile is called projectile motion.

When the projectile is thrown in the air at some angle θ, then there are two independent motions taking place at the same time. First is the component of motion along the vertical direction along which gravity acts. Second is the component of motion along the horizontal direction along which the object moves with a constant velocity. No force acts along the horizontal direction. The horizontal motion does not affect the vertical motion and the converse is also true. So these are independent of each other.

The time of flight is the time during which a projectile remains in the air. This time of flight is calculated using the formula,

T=2usin(θ)/g

where T is the time of flight, u is the initial velocity and g is the acceleration due to gravity.

Hence, the object remains in the air for a time period of 2usin(θ)/g.

Learn more about projectile.

brainly.com/question/11049671

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8 0
2 years ago
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