In a game of pool, the cue ball moves at a speed of 2 m/s toward the eight ball. When the cue ball hits the eight ball, the cue ball bounces off with a speed of 0.8 m/s at an angle of 20°, as shown in the diagram below. Both balls have a mass of 0.6 kg.
a. What is the momentum of the system before the collision? (Write it in component form.) (1 point)
b. What is the momentum of the system after the collision? (1 point)
c. Write the velocity of the cue ball after the collision in component form. (1 point)
d. What is the x-component of the velocity of the eight ball after the collision? (2 points)
e. What is the y-component of the velocity of the eight ball after the collision? (2 points)
f. At what angle does the eight ball travel after the collision? (2 points)
g. What is the magnitude of the eight ball's velocity after the collision? (1 point)
Answers: 1
Physics, 22.06.2019 23:00
Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.
Answers: 2
Physics, 23.06.2019 02:00
Employer informs its employees that it will hold a substantial cash prize drawing for each work group at the end of each month in which no employee in the work group sustains a lost-time injury. tyra reports an injury that she sustained while operating a mechanical power press. tyra did not violate any employer safety rules when she sustained her injury. tyra’s injury requires her to miss work for two days. her employer cancels the cash prize drawing for that month for tyra’s work group because of tyra’s lost-time injury. did the employer misuse an incentive program to retaliate against tyra?
Answers: 3
Physics, 23.06.2019 08:30
which pair of rays would be part of a ray diagram showing reflection? - a & b which pair of rays would be part of a ray diagram showing refraction? c & a
Answers: 1
Physics, 23.06.2019 10:40
7.study the scenario. a small container of water with a low temperature is poured into a large container of water with a higher temperature. which choice correctly explains what happens to the thermal energy of these systems? the smaller container of water has more heat and thermal energy than the larger container. some heat and thermal energy is transferred to the larger container of water. the larger container of water has more heat and thermal energy than the smaller container. some heat and thermal energy is transferred to the smaller container of water. the larger container of water has more thermal energy and some of that energy is transferred to the colder water in a process known as heating. the smaller container of water has more thermal energy than the larger container, and some of that energy is transferred to the warmer water in a process known as heating.
Answers: 1
In a game of pool, the cue ball moves at a speed of 2 m/s toward the eight ball. When the cue ball h...
Health, 26.11.2020 16:30
Mathematics, 26.11.2020 16:30
Social Studies, 26.11.2020 16:30
Health, 26.11.2020 16:30
Computers and Technology, 26.11.2020 16:30
History, 26.11.2020 16:30
Mathematics, 26.11.2020 16:30
Arts, 26.11.2020 16:30
Chemistry, 26.11.2020 16:30
Mathematics, 26.11.2020 16:30
Computers and Technology, 26.11.2020 16:30
Biology, 26.11.2020 16:30