Recent content by master_333

What are two aspects in which the volume expansion of liquids and the volume expansion of gases due to a temperature change vary? Answer: One of the aspects is that gases can be more easily heated than liquids. This is because there are intermolecular forces (Van Der Waals interactions)...

Thank you, that was very helpful.

You don't need the diagram. You can do it using the question. The diagram are just two rods with masses attached to them. I'm asking if moving in unison means moving with the same velocity.

Homework Statement Rods of negligible mass connect discrete masses as shown in the diagram below. For each system, the masses rotate about the midpoint of each connecting rod. Furthermore the systems appear to rotate in unison as time progresses. Do the systems have the same velocity? Homework...

Homework Statement What do you call a mutation that changes the G nucleotide of the mRNA, which was transcribed from a mutated DNA? Homework EquationsThe Attempt at a Solution I believe the answer is a point mutation, more specifically nonsense since no protein is produced.

Homework Statement What is the difference between the images of Meiosis Metaphase 2 and Mitosis Metaphase other than the fact that the chromosomes have crossed over regions. Also, you have not been told that the chromosome number. All you have been told is that the height of the sister...

No but you are not given the number of chromosomes. You are just told that the height of the sister chromatids is different

What is the difference between the images of Meiosis Metaphase 2 and Mitosis Metaphase other than the fact that the chromosomes have crossed over regions.

Okay thanks for trying to help me. But the way your trying to help me, I clearly do not understand anything. Whatever, I guess I will just skip this question.

Okay, the momentum of the ball when it first contacts the floor is (0.075kg)(6.57m/s) = 0.49275 kg.m/s I don't know how to find the momentum of the ball when it just loses contact with the floor Please, can you show me how to do it. Rather than giving me hints that I don't understand

Okay tell me if what I did is correct Velocity right before the ball hit the ground vfinal^2 = vinitial^2 + 2ad vfinal^2 = (0)+2(9.8)(2.2m) vfinal = 6.57m/s If this was the velocity that the ball hit the ground with then the force is F = p/t F = (0.075kg)(6.57m/s)/0.024s F = 20.53N If 20.53N...

Homework Statement A 75-g ball is dropped from rest from a height of 2.2 m. It bounces off the floor and rebounds to a maximum height of 1.7 m. If the ball is in contact with the floor for 0.024 s, what is the magnitude and direction of the average force exerted on the ball by the floor during...

Homework Statement Sorry this may be a better picture. I missed the top of the page but the question says 1) In the pole vault event, an athlete runs as fast as possible towards the bar, holding a flexible fiberglass pole. He stick s the end of the pole into a slot in the ground, swings up on...

Sorry I know the right answer now. However I typed it in wrong. I forgot to write that the answer i got is A . Thanks

Homework Statement How many points of intersection does the line y = x have with the parabola y = 6x − x2 −10 ? A) none B) one C) two D) three E) more than three Homework EquationsThe Attempt at a Solution x = 6x - x^2 - 10 -x^2+5x - 10 Used b^2 - 4ac to check the number of intersections. The...