The Voyager 1 spacecraft, shown below, completed its space exploration mission in 1980 and has since been traveling away from Ea
2 answers:
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Answer:
sum of these two vectors is 6.06i+3.5j-3.5i+6.06j = 2.56i+9.56j
Explanation:
We have given first vector which has length of 7 units and makes an angle of 30° with positive x-axis
So x component of the vector
y component of the vector
So vector will be 6.06i+3.5j
Now other vector of length of 7 units and makes an angle of 120° with positive x-axis
So x component of vector
y component of the vector
Now sum of these two vectors is 6.06i+3.5j-3.5i+6.06j = 2.56i+9.56j
Answer:
<h2>60 N</h2>Explanation:
The magnitude of the force can be found by using the formula
w is the workdone
d is the distance
From the question we have
We have the final answer as
<h3>60 N</h3>Hope this helps you
Answer:
The sound intensity at the position of the microphone is
Explanation
Sound intensity is given by the formula
Where is the sound intensity,
is the power and
is the area.
Since the loudspeaker radiates sound in all directions, we have a spherical sound wave where the radius r is the distance of the microphone from the speaker.
∴ is given by
where
is the radius
From the question, = 33.0W,
= 52.0m
∴
Hence, the sound intensity at the position of the microphone is 9.71 × 10⁻⁴ W/m²