The distance between the ruled lines on a grating is 1770 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band
What is the longest wavelength that appears in the third order spectrum? A) 590 nm
B) 570 nm
C) 550 nm
D) 530 nm
E) 610 nm
A
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A circuit consists of 2N resistors, all of resistance R, connected as shown below. A potential difference V is applied to one end, and the other end is at ground potential. The equivalent resistance of the circuit is
A.
.B.
C.
.D.
E.
What is the magnitude of the free-fall acceleration at a point that is a distance 2R above the surface of the Earth, where R is the radius of the Earth?
a. 4.8 m/s2 b. 1.1 m/s2 c. 3.3 m/s2 d. 2.5 m/s2 e. 6.5 m/s2
Gravitational Force: A spaceship with a mass of 2.8 × 106 kg is traveling toward two spherical asteroids, each with a mass of 5.0 × 1016 kg, that are 40 km apart center-to-center. Its path is perpendicular to the line joining the asteroids and is aimed at the midpoint of that line. What is the net gravitational force exerted by the asteroids on the spaceship when the spaceship is 30 km away from that midpoint? (G = 6.67 × 10-11 N ? m2/kg2)
A. 12,000 N B. 8000 N C. 16,000 N D. 6200 N E. 18,000 N
A mass src="https://sciemce.com/media/4/354096dfc31fe48a34.png" class="w-image" />?
is connected by a light string that passes over a pulley of mass M to a mass 
sliding on a frictionless incline as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 30.0 cm and a moment of inertia of 
If 
is 4.00 kg, 
is 4.00 kg, M is 4.00 kg, and the angle is 70.0 degrees, then what is the acceleration of
A. 3.10 
B. 2.89
C. 2.43
D. 2.15
E. 1.49