What is the kinetic energy of a 55-kilogram skier traveling at 9.0 meters per second?
(1)2.5...
![subject](/tpl/images/cats/fizika.png)
Physics, 29.08.2019 17:30 madams4450
What is the kinetic energy of a 55-kilogram skier traveling at 9.0 meters per second?
(1)2.5 × 102j
(2)5.0 × 102j
(3)2.2 × 103j
(4)4.9 × 103j
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:30
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:30
Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 13:00
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:30
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 21.09.2020 09:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 21.09.2020 09:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.09.2020 09:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.09.2020 09:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 21.09.2020 09:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.09.2020 09:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 21.09.2020 09:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.09.2020 09:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.09.2020 09:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
English, 21.09.2020 09:01