pressure gradient
X rays from infalling gas
accrete gas from a binary companion star
What supports a reularstar against gravity? Dark matter. Centripetal forces. Electric/magnetic repulsion. Pressure gradient.
6) do gravitational or electric forces govern the structure of matter. A) Gravity. B) Electric.
What supports a neutron star against the inward pull of its own gravity?
If an electric force is a force of attraction or repulsion between charged particles and magnetic force is a force of attraction between magnetized materials. What is the difference between magnetic force and electromagnetic force? How come electromagnetic force stick atoms together? Why do atoms have electromagnetic force?
What is the evidence that a large proportion of the mass of the universe is in the form of dark matter? fast In 1933 astronomers noticed that galaxies at the edge of the Coma cluster of galaxies were moving much too the cluster to remain in the cluster, given the amount of mass that was observable in slow not observable observable 10 90 50 This led to the suggestion that some "dark" matter that was the 1970s many observations have...
QUESTION 1 (T1) What is an adverse pressure gradient? (9.2) A. Where pressure increases with distance downstream O B. Where pressure decreases with distance downstream C. Where pressure is uniform in the flow D. Where pressure is pushing the iow downstream QUESTION 2 (T2) Where does an adverse pressure gradient occur on an airfoil? (9.2) O A. Leading edge O B. Near or after the point of maximum thickness O C.Only in a region where the boundary layer is turbulent...
1- Explain what the center of mass/gravity is. Can it move? Why does its location matter? 2- Define angular velocity, angular acceleration, period, frequency, moment of inertia, centripetal acceleration, and angular momentum. 3- . How does angular velocity relate to linear velocity? How does angular acceleration relate to liner acceleration? 4- Compare and contrast ‘uniform circular motion’ with ‘nonuniform circular motion
what direction is the magnetic force and electric force
going.
aA straight line. b. A circle. c. An ellipse. d. A parabola. Part II: Solve 4 out of 5 problems 21 points each, show all work to get credit . An electron moves through a region of crossed electric and magnetic fields. he electric field E-2500 V/m and is directed downwards. The magnetic field B 1.25 T and is directed to the left. (a). Specify the directions of electric and...
1) Strength of the electric force The earth and the moon exert attractive gravitational forces on one another according to Newton's law of gravitation. However, since the earth and the moon are electrically neutral (that is, the net charge of each planet is zero), they do not exert electrical forces on one another. Assume now that someone (aliens) removes some number N of electrons from both the earth and the moon, so that the two bodies now exhibit electrical repulsion...
X nt PROBLEMS ABOUT MAGNETIC FORCES P4) A region contains both uniform electric field E(S.2-4j+2k) x 103 V/m and magnetic field B = Bi+B. When a proton q 16X 10-c is inserted (6+3-5)x 10 m/s, it is found that the net force on the proton is Prepared by Asist Prof Dr. I.Sakalli P1) A wire carries a steady current of 0.6A. A straight section of ie the region with a constant velocity follows F(29.121 424j + 10.4 ) x 10-16N...
choose correct answer. no explanation needed
QUESTION 36 What does the apparent magnitude of a star tell us about that star? its mass how bright it appears from Earth its radius how much energy it is emitting QUESTION 37 What is the reason sunspots appear darker than surrounding regions on the Sun's surface? They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are too cold to emit any visible light. They...