This is true because I had did this befor e
The velocity of the object after 4.0 seconds is 8.0 m/s
Explanation:
The motion of the object is a uniformly accelerated motion (constant acceleration), therefore we can use the following suvat equation:
where
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time
For the object in this problem, we have:
u = 0 (it starts from rest)
is the acceleration
t = 4.0 s is the time elapsed
Solving for v, we find the final velocity:
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Answer: B.move from the negatively charged body to the positively charged body.
Explanation: If one body is positively charged and another body is negatively charged, free electrons tend to move from the negatively charged body to the positively charged body. This happens because they have different charges and therefore electrons are more attracted to the positive or its opposite charge.
It has a 10 electrons. Since it's atomic number is 11 it must have 11 protons. Also, given that it has a +1 charge, it has one less electron than protons since they have equal but opposite charges.
The number of protons is the mass number minus the atomic number = 23-11= 12 neutrons.
The most common reasons for density errors include using the wrong or inaccurate instruments and not accounting for temperature changes. There are many different instruments you can use to measure liquid volume such as kitchen measuring cups, beakers, graduated cylinders and volumetric pipettes.
