Someone help me with this please
...
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 17:30
The ballistic pendulum was invented in 1742 by english mathematician benjamin robins. it consists of an initially stationary pendulum that moves after being struck by a bullet, and it is used to measure the original velocity of the bullet. the known variables are the bullet's mass m, the pendulum's mass m, and the height to which the block and bullet swing, determined by the length of the pendulum l and final angle θ. two principles of physics are necessary to solve for the bullet's original velocity. what are these principles? conservation of momentum and newton's third law conservation of energy and conservation of angular momentum grade summary deductions 0% potential 100% conservation of momentum and newton's second law. newton's second law and conservation of angular momentum. conservation of energy and newton's third law conservation of momentum and conservation of angular momentum. conservation of momentum and conservation of energy conservation of energy and newton's second law.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:30
The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:30
The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:20
Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 12.11.2020 19:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/istoriya.png)
History, 12.11.2020 19:20
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20
![question](/tpl/images/cats/en.png)
English, 12.11.2020 19:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 12.11.2020 19:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 12.11.2020 19:20
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.11.2020 19:20