Physics, 12.10.2019 07:50 lolmaster101

What is the weight on earth of a girl with a mass of 23kg?

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 17:30

How does convection affect our atmosphere? our layers of earth? our oceans?

Answers: 3

Answer

Physics, 22.06.2019 00:30

The plum pudding model of the atom states that ?

Answers: 1

Answer

Physics, 22.06.2019 16:40

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Answers: 3

Answer

Physics, 23.06.2019 00:10

During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.