Answer:
m = 375 [gram]
Explanation:
A triple Beam balance is an instrument very easy to use, since we only have to perform the arithmetic sum of each of the weights that are recorded in each beam
m = 300 + 70 + 5 = 375 [gram]
For a better understanding, the following image is attached, with values on each beam, which should be read.
The largest mass is in the indicator of 100 [gram], the second mass is in the indicator of 20 [gram] and the third is in the indicator of 5.8 [gram]. Thus the arithmetic sum corresponds to:
M= 100 + 20 + 5.8 = 125.8 [gram]
Note: it is important that when the instrument is in balance, the opposite end of the beam should indicate a position of zeros.
Air resistance ------- - - -- - - - :)
Answer: 4.3 m/s
Explanation:
The centripetal force is given by
where
m is the mass of the object
v is the speed
r is the radius of the circular trajectory
In this problem, we know:
- the centripetal force: F = 533 N
- the radius of the circle: r = 0.75 m
- the mass of the object (Rachel): m = 16.4 kg
Therefore, we can re-arrange the formula above to find the speed of Rachel:
Answer:
The buoyant force is the pressure of the object being forced upward.
<em>Weight of the object affects the buoyant force</em> of the submerged object; as weight is added to the object, it will cause the object to sink. The more weight...the more it will sink.
If the weight is less than the buoyant force, it will cause the object to go up.
If the weight is the same as the buoyant force, the object will stay in the same position.
Explanation:
They are not necessary from the certain experiment or project the person(s) might be doing
