A 10 kg bomb is moving NORTH with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0 kg fragment moving WEST with a speed of 8.0 m/s, a 4.0 kg fragment moving EAST with a speed of 10 m/s, and a third 1.0 kg fragment. What is the velocity of the third fragment?
A. zero
B. 40 m/s NORTH
C. 40 m/s SOUTH
D. none of these answers are correct
B. 40 m/s NORTH
You might also like to view...
The energy from the accretion disk around a black hole would show gravitational red shift due to its immense gravity and tidal distortion of space there
Indicate whether the statement is true or false
Which event marks the beginning of a supernova?
A) the expansion of a low-mass star into a red giant B) the beginning of neon burning in an extremely massive star C) the onset of helium burning after a helium flash in a star with mass comparable to that of the Sun D) the sudden collapse of an iron core into a compact ball of neutrons E) the sudden outpouring of X-rays from a newly formed accretion disk
A very large sheet of a conductor carries a uniform charge density of 4.00 pC/mm2 on its surfaces. What is the electric field strength 3.00 mm outside the surface of the conductor? (?0 = 8.85 × 10-12 C2/N ? m2)
A) 4.52 × 105 N/C B) 2.26 × 105 N/C C) 9.04 × 105 N/C D) 0.452 N/C E) 0.226 N/C
You do not see your image when you look at a flat rough aluminum surface because of
a. interference b. diffraction c. specular reflection d. diffuse reflection e. polarization