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brilliants [131]
2 years ago
13

How to convert work done in joules into kilojoules?

Physics
2 answers:
Alexandra [31]2 years ago
8 0

Answer:

divide by 1000

Explanation:

eg 1kJ is equal to 1000J

Sav [38]2 years ago
3 0

1 Kilojoule [kJ] = 737.562 149 277 27 Foot pound force [ftlbf]

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A person throws a ball straight up. He releases the ball at a height of 1.75 m above the ground and with a velocity of 12.0 m/s.
Lyrx [107]

Answer:

a) 1.22 s

b) 9.089 m

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s²

v=u+at\\\Rightarrow t=\frac{v-u}{a}\\\Rightarrow t=\frac{0-12}{-9.81}\\\Rightarrow t=1.22\ s

Time taken by the ball to reach the highest point is 1.22 seconds

s=ut+\frac{1}{2}at^2\\\Rightarrow s=12\times 1.22+\frac{1}{2}\times -9.81\times 1.22^2\\\Rightarrow s=7.339\ m

The maximum height the ball will reach above the ground is 1.75+7.339 = 9.089 m

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3 years ago
In which thermodynamic process work done maximum
gulaghasi [49]
Isobaric process has max work done
6 0
4 years ago
Which of the following choices is the best example of potential energy?
jekas [21]

Answer:

A basketball sitting still in a players hands

Explanation:

The other 3 answers have the ball <u>in motion</u> (going towards the basket, bouncing, and rolling) so that would be <u>kinetic energy</u>.

When the basketball is sitting in the player's hands, it has the potential to be in motion.

8 0
3 years ago
Skylar goes to a pumpkin patch and pick out a pumpkin that has a mass of 6000 grams how many kilograms is the pumpkin
Alex
1000g = 1kg
6000g =6000 × 1/1000
=6kg
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3 years ago
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a runner makes one lap around a 200m track in 25s, what is the runners (a) average speed and (b) average velocity
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