Physics, 26.07.2019 22:30 Liantic8738

Using only newtonian gravity and approximate values to get an approximate answer. consider two collapsed stars, each with a mass of 10a32 kg. they are orbiting the midpoint between them with a frequency of 100 hz, and so are radiating gravitational waves at twice this frequency. estimate the distance between them. (newton's constant of universal gravitation is 6.6710^11 n. m^2.kg^-2. * they only briefly have this frequency, because the energy of their gravitational radiation comes from their orbital energy, so they are spiralling rapidly inwards supplementary question: dr blair jnr, (an excited australian physicist working on the project) was interviewed on radio national this morning and chose to demonstrate them using a cello. why a cello rather than a violin? both can play what physicists call a chirp and what musicians call portamento. can you think why it might be difficult to find frequencies much higher than 100 hz?

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 11:30

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above

Answers: 1

Answer

Physics, 22.06.2019 22:30

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?

Answers: 3

Answer

Physics, 23.06.2019 05:30

Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s

Answers: 3

Answer

Physics, 23.06.2019 09:00

Choose the correct general statement concerning the total potential and kinetic energy at any point along the arc of swing. the total energy at any point along the arc of swing of the pendulum is always less than 12 joules. the total energy at any point along the arc of swing of the pendulum is always more than 12 joules. the total energy at any point along the arc of swing of the pendulum is always equal to 12 joules. not enough information to determine

Answers: 1

Answer

You know the right answer?

Using only newtonian gravity and approximate values to get an approximate answer. consider two colla...

Questions