Momentum is conserved in which situations? (select all that apply) elastic collisions inelastic collisions explosions
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- An astronaut wearing a space suit floats in the middle of a room with no air and is 20.0m from any wall, the floor and the ceiling. She needs to get to the door. She has only a book and a pencil in her possession. Under these conditions, how can she get to the door?While doing an experiment a student uses a triple beam balance to measure the mass of a cart and gets 273.9 g. While calculating the mass they get the values: 268.5 g. 288.7 g, and 270 g. What would the GAV for the cart be? 268.5 g 288.7 g 275.7 g 274.8 g 273.9 gWe will use differential equations to model the orbits and locations of Earth, Mars, and the spacecraft using Newton’s two laws mentioned above. Newton’s second law of motion in vector form is: F^→=ma^→ (1) where F^→ is the force vector in N (Newtons), and a^→ is the acceleration vector in m/s^2,and m is the mass in kg. Newton’s law of gravitation in vector form is: F^→=GMm/lr^→l*r^→/lr^→l where G=6.67x10^-11 m^3/s^2*kg is the universal gravitational constant, M is the mass of the larger object (the Sun), and is 2x10^30 kg, and m is the mass the smaller one (the planets or the spacecraft). The vector r^→ is the vector connecting the Sun to the orbiting objects. Step one ) The motion force in Equation(1), and the gravitational force in Equation(2) are equal. Equate the right hand sides of equations (1) and (2), and cancel the common factor on the left and right sides. Answer: f^→=ma^→ f=Gmm/lr^→l^2 a^→=Gmm/lr^→l^2 x r^→/lr^→l r^→=r^→/lr^→l * Gmm Could you please…
- A very dense UFS (Unidentified Flying Sphere) has radius 1370_m and acceleration due to gravity 9.4 m/s at its surface. Find the mass of the sphere. (Note that the mass is given in exagrams or Eg, and 1 Eg = 1018 grams.) 310.6 Eg 252.4 Eg 276.5 Eg 264.5_Eg 290 Eg 300.4 Eg А. D. В. Е. С. F.A 61 kg object experiences a gravitational field of size 2.9 N/kg. Calculate the gravitational force on the object. (Please answer to the fourth decimal place - i.e 14.3225)A proton is located at (0, 0, -1.0 x 10-9) m, and an alpha particle (consisting of two protons and two neutrons) is located at (1.0 x 10-9, 0, 2.5 x 10-9) m. (Express your answers in vector form.) (a) Calculate the force the proton exerts on the alpha particle. XN (b) Calculate the force the alpha particle exerts on the proton. X N
- I keep getting this wrong despite working it out many times. Can I please get some insight on the right approach? A team of astronauts is on a mission to land on and explore a large asteroid. In addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. With what minimum initial speed ?esc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? Assume that the asteroid is approximately spherical, with an average density ?=3.32×106 g/m3 and volume ?=2.40×1012 m3 . Recall that the universal gravitational constant is ?=6.67×10−11 N·m2/kg2 . Answer in m/shi, i need solutions for these exercises. from 2.2 to 2.5. if there is no possibility for solutions for all of them that's ok, solve the one that you can solve. thanksI know the answer. But it comes out as cos^-1(12/25)dms 1.07, how does the angle 61 degrees come out?
- One correct comparison between the electrostatic force and the gravitational force is that (a) gravitational force is greater than the electrostatic force (b) the gravitational force increases with the increasing distance between two masses (c) gravitational force is always attractive (d) the electrostatic force is always repulsiveSuppose there is a correction term to Newton's law of universal gravitation where the letters have their usual meaning and are given in SI units and, in particular, r is the separation distance between the two masses m1 and m2 and A is some new constant of nature. Find the units of this constant A.A probe of mass 100 kg is coasting through a dense gas cloud in deep space, where g = 0. There is drag from the gas cloud and it is modeled by the equation -0.38 v (N). If the probe entered the gas cloud with speed 1,047 m/s, how much time, in s, will it take for the probe's speed to be reduced to 14 percent of its initial velocity? (Please answer to the fourth decimal place)