A 50-gram superball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the average acceleration of the ball during this time interval?
13 400 m/s2
You might also like to view...
Diffraction Gratings: Which of the following changes would increase the separation between the bright fringes in the diffraction pattern formed by a diffraction grating?
A. Increase the wavelength of the light used. B. Increase the separation between the slits. C. Immerse the apparatus in water. D. All of these. E. None of these.
Newton's laws of motion apply only to objects experiencing the force of gravity. They do not apply to objects experiencing a magnetic force.
Answer the following statement true (T) or false (F)
How does a black hole form from a massive star?
A) During a supernova, if a star is massive enough for its gravity to overcome neutron degeneracy pressure in the core, the core will collapse to a black hole. B) Any star that is more massive than 8 solar masses will undergo a supernova explosion and leave behind a black hole remnant. C) If enough mass is accreted by a white dwarf star that it exceeds the 1.4 solar mass limit, it will undergo a supernova explosion and leave behind a black-hole remnant. D) A black hole forms when two massive main-sequence stars collide. E) If enough mass is accreted by a neutron star, it will undergo a supernova explosion and leave behind a black-hole remnant.
What are the formula masses of water, H20; propene, C3H6; and 2-propanol, C3H8O?
A) water: 18 amu; propene: 40 amu; 2-propanol: 58 amu B) water: 18 amu; propene: 42 amu; 2-propanol: 62 amu C) water: 18 amu; propene: 42 amu; 2-propanol: 60 amu D) water: 18 amu; propene: 44 amu; 2-propanol: 64 amu