NEET Physics: Questions 109 - 113 of 2099
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Three of the fundamental constants of physics are the universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant,
h = 6.6 x 10 -34 kg m 2 s -1.
Question number: 109 (2 of 2 Based on Passage) Show Passage
Find the value of Planck time in seconds
The universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant, h = 6.6 x 10 -34 kg m 2 s -1.
2.3 10 -13 s
1.3 10 -33 s
1.3 10 - 43 s
|d.||None of the above|
When an airplane flies, its total velocity with respect to the ground is v total = v plane + v wind’ where v plane denotes the plane’s velocity through motionless air,
And v wind denotes the wind’s velocity. Crucially, all the quantities in this equation are vectors. The magnitude of a velocity vector is often called the “speed. ”
Consider an airplane whose speed through motionless air is 100 meters per second (m/s). To reach its destination, the plane must fly east.
The “heading” of a plane is in the direction in which the nose of the plane points. So, it is the direction in which the engines propel the plane.
Question number: 110 (1 of 3 Based on Passage) Show Passage
Question number: 111 (2 of 3 Based on Passage) Show Passage
The pilot maintains an eastward heading while a 20 m/s wind blows northward. The plane’s velocity is deflected from due east by what angle?
|d.||Question does not provide sufficient data or is vague|