What is the average speed in 4 seconds going 8 meters
2 answers:
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Answer:
The magnitude of the magnetic field is 7.49x10⁻⁶T
Explanation:
The magnetic field is:
Where
i = current = 3 A
R = radius = 2.4 cm = 0.024 m
r = distance = 0.72 cm = 7.2x10⁻³m
Replacing:
Answer:
32 cm³
Explanation:
The given gas data are;
The relative density of oxygen = 16
The relative density of carbon dioxide = 12
The time it takes 25 cm³ of carbon dioxide to effuse out = 75 seconds'
The duration of effusion of the oxygen = 96 seconds
The rate of effusion of carbon dioxide, R1 = 25 cm³/(75 sec) = (1/3) cm³/sec
According to Graham's law of diffusion and effusion of a gas, we have;
Therefore, we have;
The volume of effusion = The rate of effusion × Time
The volume of the oxygen that will effuse in 96 seconds is given as follows;
The rate of effusion of a gas × Time
V = The rate of effusion of oxygen × Time = (1/3) cm³/sec × 96 sec = 32 cm³
The volume of oxygen that will effuse in 96 seconds, V = 32 cm³.
Answer:
9.61 m
Explanation:
d1 = 8 m north
d2 = 1 m north west
d3 = 1 m vertically down
Write the displacements in vector form
The resultant displacement is given by
The magnitude of displacement is given by
d =
d = 9.61 m