![subject](/tpl/images/cats/fizika.png)
Physics, 21.09.2019 04:10 certifiedtino4576
Apaintball’s mass is 0.0032kg. a typical paintball strikes a target moving at 85.3 m/s.
a) if the paintball stops completely as a result of striking its target, what is the magnitude of the change in the paintball’s momentum?
b) if the paintball bounces off its target and afterward moves in the opposite direction with the same speed, what is the magnitude of the change in the paintball’s momentum?
c) the strength of the force an object exerts during impact is determined by the amount the object’s momentum changes. use this idea along with your answers to (a) and (b) to explain why a paintball bouncing off your skin hurts more than a paintball exploding upon your skin.
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 16:00
28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle θ0 = 60.0° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:20
Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:30
What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34
Answers: 3
You know the right answer?
Apaintball’s mass is 0.0032kg. a typical paintball strikes a target moving at 85.3 m/s.
a) if...
a) if...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 02.01.2020 08:31
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 02.01.2020 08:31
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/en.png)
English, 02.01.2020 08:31
![question](/tpl/images/cats/istoriya.png)
History, 02.01.2020 08:31
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 02.01.2020 08:31
![question](/tpl/images/cats/mat.png)
Mathematics, 02.01.2020 08:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 02.01.2020 08:31
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 02.01.2020 08:31
![question](/tpl/images/cats/istoriya.png)
History, 02.01.2020 08:31
![question](/tpl/images/cats/mat.png)
Mathematics, 02.01.2020 08:31