Alan Lightman estimated that the energy (all forms, not just electrical) needed for a large American city for one day is roughly the same as could be provided by converting 100% of the mass of a golf ball into energy. Check to see whether this estimate is valid within an order of magnitude.
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Q: The carbon isotope 14C is used for carbon dating of objects. A 14C nucleus can change into a…
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Q: A carbon nucleus has mass 1.02e-26 kg. If its speed |v| is 0.982c (that is, |v|/c = 0.982), what are…
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Q: A beta particle emitted in nuclear decay has a kinetic energy of 2600 eV. What is its speed?
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Q: 25.) If 1 kilogram of matter could be converted entirely to energy, how much energy would be…
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A: R(N)=f(N)g(N) where f(N) = 7.2N g(N) = (1 - 7.9/N. If R(N) = H means that R'(N) = 0 and H = 10.5N,…
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Alan Lightman estimated that the energy (all forms, not just electrical) needed for a large American city for one day is roughly the same as could be provided by converting 100% of the mass of a golf ball into energy. Check to see whether this estimate is valid within an order of magnitude.
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- What is the velocity of a proton with a kinetic energy of 3.4 eV. Give your answers in 105 m/s with 3 decimal places.Chapter 37, Problem 047 A 3-grain aspirin tablet has a mass of 192 mg. For how many kilometers would the energy equivalent of this mass power an automobile? Assume 12.07 km/L and a heat of combustion of 3.07 × 10' J/L for the gasoline used in the automobile. Number UnitsHow much energy is required to accelerate a golf ball of mass 0.046 kg initially at rest to a speed of 0.75c?
- 8:56 9 27 O 3 all all 66%i (2) abäi The mechanical energy of an * :object is given by mgh 1/2mv*v EK+EP Ek1+EP1=Ek2+EP2 O (2) uhäi Which one of the following is equivalent to the Sl unit of ?energy A mass of 1 kg falls for 1m O A force of 1 N moves an object 1m in its direction. A joule of work is done per second. An applied force of 1 N acts on a stationary object II KA quarter-pound hamburger with all the fixings has a mass 180 g. The food energy of the hamburger is 1.90 MJ. What is the energy equivalent of the mass of the hamburger? By what factor does the energy equivalent exceed the food energy?The carbon isotope 14C is used for carbon dating of objects. A 14C nucleus can change into a different kind of element, a neighbor on the periodic table with lower mass, by emitting a beta particle – an electron or positron – plus a neutrino or an anti-neutrino. Consider the scenario where 14C ( mass of 2.34 x 10 -26) decays by emitting an electron and anti neutrino. The electron has a mass of 9.11x 10-31 kg and a speed of 5.5 x107 m/s. While the anti neutrino has a momentum of 8.5x10-24 kg-m/s. If the electron and anti neutrino are emitted at right angles from each other, calculate the recoil speed of the nucleus.
- dx 4x 3. In so-called "natural units" (which is just a sneaky way to let us ignore a bunch of constants), the relativistic kinetic energy of a rigid body is given by the formula 1 КЕ — т V1 – v2 where m is the rest mass of the body and v is its relative speed. Alien scientists on a space station are observing an object falling into a black hole. As the object falls, it is disintegrating, losing mass at a rate of 3 (so its mass is changing at a rate of -3). How fast is the kinetic energy of the main part of the object changing when its mass is 20, its velocity is .7, and it is accelerating at a rate of .1 (remember that acceleration is the derivative of velocity with respect to time: a = dt 1Note that this formula does not make sense when v > 1. That is because in natural units, a speed of 1 corresponds to the speed of light, and nothing with positive rest mass can go that fast.Helpful information: (1) An alpha particle is a helium nucleus, (2) e = 1.6 × 10-¹⁹ C, (3) k₂ = 9.0 × 10⁹ Nm² C-2, (4) 1nm = 1 × 10-⁹ m 1-An alpha particle lies on the x-axis, a distance of 1.0 nanometer from a proton (in this set-up, the alpha particle is at the origin while the proton is in the positive direction). Which of the following choices below represents the magnitude of the electric force on the alpha particle? (a) 2.3 × 10-10 N (b) 4.6 × 10-10 N (c) 2.3 x 10-19 N (d) 4.6 x 10-19 N cing the voltage so following insta choices below at a time! 1.00 s?4. Consider following the following the fusion nuclear reaction: n+p+p→;He. What happens to the different types of potential energies of this system as a result the reaction (i.e. the electrical potential energy and the strong nuclear potential energy)? The atomic mass of He is 3.016029 u. a. The electrical potential energy and the strong nuclear potential energy both increase. b. The electrical potential energy increases and the strong nuclear potential energy decreases. c. The electrical potential energy increases and the strong nuclear potential energy remains the same. d. The electrical potential energy decreases and the strong nuclear potential energy increases. e. The electrical potential energy and the strong nuclear potential energy both decrease.
- The Sun produces energy at a rate of 4.00 x 1026 W by the fusion of hydrogen. How many kilograms of mass is the Sun losing per second?A spaceship of mass 2.00 x 106 kg is to be accelerated to a speed of 0.730c. (a) What minimum amount of energy does this acceleration require from the spaceship's fuel, assuming perfect efficiency? 19.23e22 X Your response differs from the correct answer by more than 100%. J (b) How much fuel would it take to provide this much energy if all the rest energy of the fuel could be transformed to kinetic energy of the spaceship? 2.136e6 X Your response differs from the correct answer by more than 100%. kg