Recent content by AClass

40 years (2) +(0.20)(40 years)= 88 years Means, the parent is on route for 80 years [40 Years there, then 40 years back], plus since she is traveling 10% slower than the speed of light 20% slower since she is going there and back. I realize where I went wrong. I went to verify my notes. The...

I'm not getting another answer for a) From what I was taught, L is the relativistic contracted distance measured by an observer moving. [Astronaut] Lo is the proper distance measured by a observer stationary. [Planet Observer] For b) I realize where I went wrong. I used a different technique...

Homework Statement A spaceship travels past a planet at a speed of 0.80 c as measured from the planet’s frame of reference. An observer on the planet measures the length of a moving spaceship to be 40 m. a) How long is the spaceship, according to the astronaut? b) At what speed would the...

Homework Statement a 30-year old female astronaut leaves her newborn child on Earth and goes on a round-trip voyage to a star that is 40light-years away in a spaceship traveling at 0.90c. what will be the ages of the astronaut and her son when she returns? Homework Equations \Delta t =...

Homework Statement Light with wavelengths of 520 nm and 630nm passes through a diffraction grating that contains 6000 lines/cm. 1) calculate the angles for the first and second order maxima that would appear on the screen Homework Equations sin(Theta)m = m(Lamda)/d The Attempt at a...

Thank you for verifying.

Homework Statement Three charges are arranged as shown in the diagram below. Their magnitudes are: q1 = +2.5 x 10^-17 C q2 = +3.0 x 10^-17 C q3 = +3.5 x 10^-17 C (its a right angle triangle, with 50 cm as the hypotenuse, 40 cm as the horizontal, and 30 cm as the vertical) Figure image...

Would that mean that F2 is (3/2) of F1? if they were combined. Because I obtained the same answer.

I obtained similar results. Wondering if anyone can verify if they are correct.

Your velocity seems to be one x10 too big. v = (12.4 x 10^7 kg km/hr)/(3.6 x 10^4 kg) = 3.44 x 10^3 km/hr Noted for reference.

Homework Statement Calculate the total energy of a geosynchronous satellite (one that orbits over a fixed spot) with a mass of 1500kg, orbiting Earth at a height of 325km with an orbital speed of 5000m/s Homework Equations ET=Ek+Ep Ek=(0.5)(m)(v)^2 Ep=(m)(g)(h) The Attempt at a Solution...

Yes, they failed to provide a direction. All that was explained is in the direction towards the earth.

Homework Statement A satellite with a mass of 5.00 x 10^2kg is in a circular orbit, whose radius is 2(radius of the earth), around earth. Then it is moved to a circular orbit with a radius of 3(radius of the earth). a) Determine the satellite's gravitational potential energy from the...

c) v=sqt(GMe/r) v=sqt(G(5.98x10^24kg)/9.4168x10^6) v=6509.6776m/s I had forgotten to take the square root. for b) Other sources suggested that 4.5N/Kg is equal to 4.5m/s^2, that being its only acceleration. Seems that someone else who has taken my course before had confirmed that...

Homework Statement A satellite is designed to orbit Earth at an altitude above its surface that will place it in a gravitational field with a strength of 4.5 N/kg. a) Calculate the distance above the surface of Earth at which the satellite must orbit. b)Assuming the orbit is circular...