![subject](/tpl/images/cats/fizika.png)
Aball is thrown straight upward and returns to the thrower’s hand after 1.8 s in the air. a second ball is thrown at an angle of 23◦ with the horizontal. at what speed must the second ball be thrown so that it reaches the same maximum height as the first? the acceleration of gravity is 9.8 m/s 2 . answer in units of m/s.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:30
A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:40
Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:10
Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 13:50
Observations show that interstellar clouds can have almost any shape and
Answers: 1
You know the right answer?
Aball is thrown straight upward and returns to the thrower’s hand after 1.8 s in the air. a second b...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 17:10
![question](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 17:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 03.06.2021 17:10
![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/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.06.2021 17:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.06.2021 17:10
![question](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 17:10
![question](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 17:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.06.2021 17:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 17:10
![question](/tpl/images/cats/istoriya.png)