What is the kinetic energy of a 50-kg child running to catch the school bus at
2 m/s?
o...
![subject](/tpl/images/cats/fizika.png)
Physics, 18.12.2019 01:31 limitbreak7897
What is the kinetic energy of a 50-kg child running to catch the school bus at
2 m/s?
o a. j
o b. 25 j
o c. 100j
o d. 200
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 15:20
If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 17:00
Asimply means that over time there was some sort of change.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:30
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:10
Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/mkx.png)
Arts, 24.03.2021 03:10
![question](/tpl/images/cats/istoriya.png)
History, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10
![question](/tpl/images/cats/en.png)
English, 24.03.2021 03:10
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 24.03.2021 03:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 24.03.2021 03:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 03:10