A superball is dropped and bounces up and down. The height at A is 1 m.
a. What is the m...
Physics, 16.04.2021 21:40 JohnnyR7057
A superball is dropped and bounces up and down. The height at A is 1 m.
a. What is the mass of the ball if the velocity at B (just before hitting the ground) is 4.43 m/s? Explain, everything!
b. If the height at C is 0.8 m, what happened to the "other" energy?
c. How much is this "other" energy for a 30 g ball?
Answers: 2
Physics, 21.06.2019 21:00
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 22.06.2019 06:00
What are atoms of the same element with varying number of neutrons
Answers: 3
Physics, 22.06.2019 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
Answers: 1
Physics, 22.06.2019 09:00
Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Biology, 25.11.2019 22:31
Computers and Technology, 25.11.2019 22:31