How much power is exerted by lifting a 500 N barbell 2.2 m above the ground in 2 seconds?
...
![subject](/tpl/images/cats/fizika.png)
Physics, 04.11.2020 20:10 honeylebling
How much power is exerted by lifting a 500 N barbell 2.2 m above the ground in 2 seconds?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:30
Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:00
Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 23:30
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.04.2021 22:40
![question](/tpl/images/cats/ekonomika.png)
Business, 07.04.2021 22:40
![question](/tpl/images/cats/biologiya.png)
Biology, 07.04.2021 22:40
![question](/tpl/images/cats/mat.png)
Mathematics, 07.04.2021 22:40
![question](/tpl/images/cats/himiya.png)
Chemistry, 07.04.2021 22:40
![question](/tpl/images/cats/es.png)
Spanish, 07.04.2021 22:40
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.04.2021 22:40
![question](/tpl/images/cats/mat.png)
Mathematics, 07.04.2021 22:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 07.04.2021 22:40
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 07.04.2021 22:40