Object B but not objective A
Answer:
a. 2N
b. 12N
c. 20N
Explanation:
Dtaa given,
Weight of rock in air=10N
weight of rock in water =8N
a. When the rock is suspend in water, it will displace some water from thr container since Buoyant force is the acts upward and equals in magnitude to the volume of water displays,
The buoyant force is calculated as 10N-8N=2N
b. The scale reading will be the sum of the buoyant force and the weight of the container
scale reading =10N+2N=12N
c. When the rock rest at the bottom of the container, the weight of the rock(10N) is acting downward and the weight of the container also is acting downward. Hence the sum of the two weight gives the reading on the scale
scale reading=10N+10N=20N
A Ignite. Because. When you put coal in a gas pit, it ignites and burns. However, there is a chance that all of us fed
The magnitude of their resultant vector is 4.6 meters/seconds
Since we are to add the velocity vectors in order to find the magnitude of their resultant vector.
Hence:
Resultant vector magnitude=5.8 meters/seconds + (1.2 meters/seconds)
Resultant vector magnitude=5.8 meters/seconds-1.2 meters/seconds
Resultant vector magnitude 4.6 meters/seconds
Inconclusion The magnitude of their resultant vector is 4.6 meters/seconds
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That is false they are slightly tilted in an up ngle
