A. Tree
B. Shapes
C. Grass
D. Mehndi
Answer:
True a, c and d
Explanation:
The correct statements that should be included in the answers are:
a) True. Bowling balls are round
b) False. The balls have different colors
c) True. If the balls are made of a very hard material
d) True. If the balls have a smooth polished surface at the same time, but not soft
F=ma
=> 20=10m so m=2
Then the force is doubled 20.2=40
F'=ma'
m does not change so 40=2.a'
a'=20 which is option b.
Give a brainliest please:-)
Answer:
Explanation:
Given
initial speed
coefficient of kinetic friction
It moves a distance d after that it comes to rest
acceleration offered by table top
The change in internal energy of the gas is -9 J
Explanation:
First of all, we need to calculate the amount of work done by the gas. This is given by the equation:
where
is the gas pressure
is the final volume of the gas
is the initial volume of the gas
Substituting, we find:
Now we can apply the 1st law of thermodynamics to calculate the change in internal energy of the gas:
where
is the change in internal energy of the gas
Q = -45 J is the heat released by the gas (negative because it is given off bu the system)
W = -36 J is the work done by the gas (negative because it is done by the surrounding on the gas)
Substituting, we find:
Learn more about ideal gases:
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brainly.com/question/7316997
brainly.com/question/3658563
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