Earth’s orbital speed is __________?

Related Mcqs:

1. The relation between the escape velocity V esc and orbital speed Vo is given by________________?

   A. V esc = 1/2Vo
   B. V esc = -2 Vo
   C. V esc = Vo
   D. V esc = 2Vo

2. If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________?

   A. 4 rad. S-1
   B. 5 rad. S-1
   C. 1.6 rad. S-1
   D. 2.8 ms-1

3. A train is moving with a speed of 100mph. What will be its speed in m/s.?

   A. 45 m/s
   B. 90 m/s
   C. 100 m/s
   D. 120 m/s

   Submitted by: Zahid Jagirani

4. The mass of an object will get doubled at the speed of __________?

   A. 2.6×10⁴ m/s
   B. 2.6×10⁶ m/s
   C. 2.6×10² m/s
   D. 2.6×10 m/s

   Submitted by: Rizwan Ayub Saadi

5. A man is in a car is moving with velocity of 36km/hr. His speed with repect to the car is ____________________?

   A. 10m/s
   B. 36m/s
   C. zero
   D. infinite

6. Newton estimated the speed of sound _____________________?

   A. 281m/sec
   B. 333m/sec
   C. 340m/sec
   D. all of the above

7. A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?

   A. independent mass m
   B. directly proportional to m
   C. directly proportional to q
   D. directly proportional to B

8. The critical speed of an artificial satellite is_______________?

   A. 8 Kms-1
   B. 8.1 Kms-1
   C. 7.9 Kms-1
   D. 8 ms-1

9. The angular speed of seconds hand of a watch in rads-1 is______________?

   A. π
   B. π/2
   C. π/30
   D. π/180

10. What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ?

    A. 1N
    B. 10N
    C. 2N
    D. 100N