A 10-kg block is pushed across a friction-free horizontal surface with a horizontal force of 20 N. The acceleration of the block is
A) 1 m/s2.
B) 2 m/s2.
C) 5 m/s2.
D) 10 m/s2.
E) none of the above
Answer: B
You might also like to view...
If you rub two transparency sheets with tissue and then hold the two transparency sheets at rest a short distance apart, they will then exert
A) a repulsive electric force on each other, but no magnetic force. B) a repulsive magnetic force on each other, but no electric force. C) an attractive electric force on each other, but no magnetic force. D) an attractive magnetic force on each other, but no electric force. E) no electric or magnetic forces on each other.
What inductance is needed in series with a 4.7
F capacitor for a resonant frequency of 10 kHz?
A. 22 uH B. 54 uH C. 0.66 uH D. 5.3 mH
A grating with 396 lines/mm is illuminated with light of wavelength 343 nm. What is the angular separation between the two second-order bright fringes?
A) 31.5° B) 15.8° C) 32.9°
Angular and Linear Quantities: An electrical motor spins at a constant 2695.0 rpm. If the rotor radius is 7.165 cm, what is the linear acceleration of the edge of the rotor?
A. 5707 m/s2 B. 281.6 m/s2 C. 572,400 m/s2 D. 28.20 m/s2