A 120-kg mass rests on a horizontal surface. What is the magnitude of the normal force exerted by the surface on the mass?
What will be an ideal response?
1180 N
Physics & Space Science
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Gamma-ray bursts seem to come primarily from neutron star binaries in the plane of our own Milky Way Galaxy
Indicate whether the statement is true or false
Physics & Space Science
Which of the following signals from an advanced civilization would be easiest to detect?
A) high intensity, narrow bandwidth B) low intensity, wide bandwidth C) high intensity, wide bandwidth D) low intensity, narrow bandwidth
Physics & Space Science
How long does it take light to travel 1.0 m? (c = 3.0 × 108 m/s)
A) 3.3 ns B) 3.3 ?s C) 3.3 ms D) 3.3 s
Physics & Space Science
What is the angular separation of two spectral lines of wavelengths 497 nm and 251 nm formed in the third order with a diffracting grating having 587 lines per millimeter?
A) 34.8° B) 24.8° C) 41.3° D) 29.4° E) 4.21°
Physics & Space Science