ПОМОГИТЕ С ФИЗИКОЙ!! Пчела и другие насекомые летают крыльями, издавая звук. Когда пчела покидает улей, ее крылья совершают 400 колебаний в секунду, а когда пчела возвращается с урожаем - 200 колебаний в секунду.​

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal