Velocity required by an object to orbit around Earth is{{}}
A) 9 km s-1
B) 7 km s-1
C) 8 km s-1
D) 10 km s-1
Correct Answer:
Verified
Q8: 105° in radians is equal to
A)2 rad
B)3
Q9: 1 rad is equal to
A)57.3°
B)54°
C)45°
D)90°
Q10: According to Newton's 2nd law the object's
Q11: A stone whirling in a horizontal circle
Q12: Centripetal force is directed towards the
A)tangent to
Q14: As compared to sound waves the frequency
Q15: Decrease in strength of signal is known
Q16: If frequency of modulated wave is less
Q17: At the end of communication system, the
Q18: Energy is lost in wires due to
A)heating
B)resistance
C)conduction
D)both
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