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Ket [755]
3 years ago
9

A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 118 km

away. The radar antenna is pointing upward at an angle of 58.9° above the ground. Find (a) the x and (b) the y components (in km) of the position vector of the satellite, relative to the antenna.
Physics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

x component 60.85 m

y component 101.031 m

Explanation:

We have given distance r = 118 km

Angle which makes from ground = 58.9°

(a) X component of distance  is given by r_x=rcos\Theta =118\times cos58.9=118\times 0.5165=118=60.85m

(b) Y component of distance is given by r_Y=rcos\Theta =118\times sin58.9=118\times 0.8562=101.0316m

These are the x and y component of position vector

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The strength of the electric field at a certain distance from a point charge is represented by E. What is the strength of the el
LUCKY_DIMON [66]

Answer:

e.)At twice the distance, the strength of the field is E/4.

Explanation:

The strength of the electric field at a certain distance from a point charge is given by:

E=k\frac{Q}{r^2}

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In this problem, the distance from the point charge is doubled:

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So the new electric field strength is

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How long must a simple pendulum be if it is to make exactly one swing per four seconds? (That is, one complete oscillation takes
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Answer:

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