1) Why don’t all the positively charged protons in the nucleus cause it to fly apart?...
1) Why don’t all the positively charged protons in the nucleus
cause it to fly apart?
2) Use Einstein’s formula to calculate the momentum (in units of
MeV/c) of a proton with a total energy of 1400 MeV. What is this is
in units of kg m/s? How fast is this proton moving (in m/s)?
Homework Answers
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1) Why don’t all the positively charged protons in the nucleus
cause it to fly apart?...
-15 apart. 1: Calculate the electric force between 2 protons in a nucleus that are 5x101...
-15 apart. 1: Calculate the electric force between 2 protons in a nucleus that are 5x101 m Compare this with the gravitational force between them. The gravitational force is expressed by F-GMr where M, and M2 are the masses of the two objects and G is the gravitational constant 6.67x101Nm2kg?. Your answers here might make you wonder why the protons don't fly apart. Use m,-1.67x102/kg. -27
BICCLL USLation 1: Calculate the electric force between 2 protons in a nucleus that are 5x1015m...
BICCLL USLation 1: Calculate the electric force between 2 protons in a nucleus that are 5x1015m apart. Compare this with the gravitational force between them. The gravitational force is expressed by F.-GM,M/2 where M, and M2 are the masses of the two objects and G is the gravitational constant 6.67x10 Nm'/kg?. Your answers here might make you wonder why the protons don't fly apart. Use mp-1.67x102"kg.
A U-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882...
A U-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882 u. What is the nuclear binding energy per nucleon in this atom? 1.93 MeV 7.57 MeV 12.3 MeV 19.6 MeV 1802 MeV A proton has a kinetic energy of 7.5 MeV. What is the speed of an alpha particle that has the same DeBroglie wavelength as the proton? The mass of the alpha particle is 6.65E-27 kg. 9517 m/s 9.53E6 m/s 1833 m/s 2.38E13...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
Rutherford's scattering experiments gave the first indications that an atom consists of a small, dense, positively charg...
Rutherford's scattering experiments gave the first indications that an atom consists of a small, dense, positively charged nucleus surrounded by negatively charged electrons. His experiments also allowed for a rough determination of the size of the nucleus. In this problem, you will use the uncertainty principle to get a rough idea of the kinetic energy of a particle inside the nucleus. Consider a nucleus with a diameter of roughly 5.0×10−15 meters. The uncertainty Δp sets a lower bound on the...
1 1 J (Joule) corresponds to: A: 1.602E-19 eV B: 6.242E18 eV C: 6.242E-20 eV D: 1.602E10 GeV 2 A...
1 1 J (Joule) corresponds to: A: 1.602E-19 eV B: 6.242E18 eV C: 6.242E-20 eV D: 1.602E10 GeV 2 A force acting on an object always changes its: A: Total energy B: Kinetic energy C: Rest energy D: Momentum 3 Momentum is a product of: A: Rest mass and velocity B: Relativistic mass and velocity C: Kinetic energy and velocity D: Relativistic mass and total energy 4 Relativistic mass as a function of velocity is: A: Linearly increasing B: Linearly decreasing C: Non-linearly increasing D: Non-linearly decreasing 5 The Lorentz-factor (g) is a ratio of: A: Total...
10 points 6. A proton is released from rest at the surface of a positively charged...
10 points 6. A proton is released from rest at the surface of a positively charged wire of radius 0.0500 cm. If the linear charge density λ is 5.00-nC/m: r 20 cm (from the center) a. What is the voltage 20 cm awayR-0.05cm from the center of the wire? proton at rest V=0 volts λ 5.00 nC/m Voltage = volts How fast is the proton moving when it is 20 cm from the wire? M-= 1.67 x 10-27 kg b....
A uniform electric field exists in the region between two oppositely charged parallel plates 1.50 apart....
A uniform electric field exists in the region between two oppositely charged parallel plates 1.50 apart. A proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval 1.41×10−6 . A) Find the magnitude of the electric field. Use 1.60×10−19 for the magnitude of the charge on an electron and 1.67×10−27 for the mass of a proton. ------ N/C B)Find the speed of the proton at...
3. (10 pts) High energy particle accelerators convert part of the energy of colliding particles into...
3. (10 pts) High energy particle accelerators convert part of the energy of colliding particles into the masses of particles produced in the collisions. Consider a collision of two protons that produces two charged kaons. The mass of the proton is mp- 938.3 MeV/c2, and the mass of each kaon is mK 493.7 MeV/c2. The reaction is a) The total energy (kinetic energy and rest energy) and total momentum is conserved. Suppose one of the protons is at rest in...
An alpha particle (m = 4.002602 u) is moving at 3.60 times 10^2 m/s. a) Find...
An alpha particle (m = 4.002602 u) is moving at 3.60 times 10^2 m/s. a) Find its mass in kilograms. (6.64 times 10^-27 kg) b) Find its kinetic energy. (4.30 times 10^-22 J) c) Find its kinetic energy in MeV. (2.69 times 10^-9 MeV) d) Find its momentum. (2.39 times 10^-24 kg. m/s) e) Find its deBroglie wavelength (2.77 times 10^-10 m = 0.277 nm) A stationary nucleus of protactinium-231 (m = 231.035879 u) decays by alpha radiation to a...
-15 apart. 1: Calculate the electric force between 2 protons in a nucleus that are 5x101 m Compare this with the gravitational force between them. The gravitational force is expressed by F-GMr where M, and M2 are the masses of the two objects and G is the gravitational constant 6.67x101Nm2kg?. Your answers here might make you wonder why the protons don't fly apart. Use m,-1.67x102/kg. -27
BICCLL USLation 1: Calculate the electric force between 2 protons in a nucleus that are 5x1015m apart. Compare this with the gravitational force between them. The gravitational force is expressed by F.-GM,M/2 where M, and M2 are the masses of the two objects and G is the gravitational constant 6.67x10 Nm'/kg?. Your answers here might make you wonder why the protons don't fly apart. Use mp-1.67x102"kg.
A U-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882 u. What is the nuclear binding energy per nucleon in this atom? 1.93 MeV 7.57 MeV 12.3 MeV 19.6 MeV 1802 MeV A proton has a kinetic energy of 7.5 MeV. What is the speed of an alpha particle that has the same DeBroglie wavelength as the proton? The mass of the alpha particle is 6.65E-27 kg. 9517 m/s 9.53E6 m/s 1833 m/s 2.38E13...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
10 points 6. A proton is released from rest at the surface of a positively charged wire of radius 0.0500 cm. If the linear charge density λ is 5.00-nC/m: r 20 cm (from the center) a. What is the voltage 20 cm awayR-0.05cm from the center of the wire? proton at rest V=0 volts λ 5.00 nC/m Voltage = volts How fast is the proton moving when it is 20 cm from the wire? M-= 1.67 x 10-27 kg b....
3. (10 pts) High energy particle accelerators convert part of the energy of colliding particles into the masses of particles produced in the collisions. Consider a collision of two protons that produces two charged kaons. The mass of the proton is mp- 938.3 MeV/c2, and the mass of each kaon is mK 493.7 MeV/c2. The reaction is a) The total energy (kinetic energy and rest energy) and total momentum is conserved. Suppose one of the protons is at rest in...
An alpha particle (m = 4.002602 u) is moving at 3.60 times 10^2 m/s. a) Find its mass in kilograms. (6.64 times 10^-27 kg) b) Find its kinetic energy. (4.30 times 10^-22 J) c) Find its kinetic energy in MeV. (2.69 times 10^-9 MeV) d) Find its momentum. (2.39 times 10^-24 kg. m/s) e) Find its deBroglie wavelength (2.77 times 10^-10 m = 0.277 nm) A stationary nucleus of protactinium-231 (m = 231.035879 u) decays by alpha radiation to a...
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