Answer:
A)
B)
Explanation:
Using the free body diagram and according to Newton's first law, we have:
A) Solving (1) for T:
B) Solving (2) for F:
3
1 answer:
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Answer:
Q1: c
Q2: a
Explanation:
you can tell the factors by looking at the formulas for kinetic and potential energy
for question 1 look at the formula for kinetic energy
the variables needed in order to calculate an object's kinetic energy are mass and velocity.
hence, when mass and velocity changes, kinetic energy changes, showing that mass and velocity are the factors affecting kinetic energy
same thing for the second question
as g (acceleration due to gravity) is considered constant (10 ) it will not be considered as a factor
and thus, the factors affecting potential energy are mass and height
Answer:
The final pressure of oxygen gas is 8.33 atm.
Explanation:
From the given data
V=26 m^3 or 26000 L
T1=270K
T2=440K
n1=6000 moles
R=0.0821 L.atm/molK
Now from the ideal gas equation
As the options given are not defined in which unit thus the final pressure of oxygen gas is 8.33 atm.
<em>*The options are provided for a different question where </em>
Answer:
Velocity v= 12.25
Explanation:
The first rock dropped give the distance Y in meters
Now the motion of the second rock the time change so to know the velocity