A) Given the following frame system, the Euler's critical load for the structure is: a) Pcr = π' ΕΙ (0.7h)2 π' ΕΙ b) Pcr = ; c) None of the above. 2 (2h)2 P EJ, EA→∞ EJ, EA→00 EA→∞ B) The Galileo-Rankine-Navier strength criterion is: a) a criterion for brittle materials; b) a criterion for ductile materials; c) a criterion for both ductile and brittle materials. C) The centre of torque of a section: a) depends on the amount of torque applied on the section; b) depends on the amount of shear force applied on the section; c) always coincides with the centre of shear. P h h/2

A spacecraft is in a 300 km circular parking orbit. It is desired to increase the altitude to 600 km and change the inclination by 20°. Find the total ΔV required if: Part A The plane change is made after insertion into the 600 km orbit (so there is a total of three ΔV burns).

MASS OF A PROTON: 1.007825 U; MASS OF A NEUTRON: 1.008665 U 10.. What are the four fundamental Forces (interactions) - Describe their interactions and ranges.

An accretion disc may form around a black hole. This is a thin disc of orbiting matter spanning radii r = Rin to Rout around the black hole. We assume that Rout » Rin and so we make the simplifying approximation that Rout → +∞o. The disc radiates according to the following equation 3 GM D(r, 0) = 1 CM (1-[B]"). 4 3 Here, r and are the usual polar coordinates with the origin at the centre of the disc. G is the gravitational constant, M is the mass of the black hole, Rin is the disc inner radius, M is the accretion rate - all these are constants. (a) Integrate D(r, 0) over the surface of the disc to find the total radiation output of the disc. (b) Find the total radiation in the case of Rin = 6GM/c2.

The Σ* particle has a rest energy of 1385 MeV and a lifetime of 2.0 ×ばつ 10-23 s. What would be a typical range of outcomes of measurements of the Σ* rest energy?

a) A K° meson (mass 497.61 MeV/c2) decays to a t, T pair with a mean lifetime of 0.89 x 10-10 s. Suppose the K° has a kinetic energy of 276 MeV when it decays, and that the two A mesons emerge at equal angles to the original K° direction. Calculate the kinetic energy of each T meson and the opening angle between them. The mass of a 7 meson is 139.57 MeV/c2.

oward College | Affordabl x OneLogin Quizzes - PHY2053L GEN PX https://bconline.broward.edu/d21/lms/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=514283&is... A Q Your Answer: Use standard MKS unit abbreviations. Answer Qinstagram login - Search A cube with sides of length 29.5 cm floats in a fluid of specific gravity 0.9. If 11.5 cm of the vertical side of the cube is above the fluid what the density of the cube? units X Instagram X