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An alpha particle with kinetic energy 14.0 MeV makes a collision with a lead nucleus, but it is not "aimed" at the center of the lead nucleus.
The alpha particles are directed at a gold foil of thickness 2µm (2 x 10^6 meters) at a rate of 100000 particles per minute.
Thomson's model of the atom depicted electrons distributed uniformly throughout a positively charged sphere.
Should we continue to develop genetically modified foods and expand their use?
A 5 kg block rests on a flat plane inclined at an angle of 300 to the horizon as shown in the diagram below.
A particle of mass m is in the one-dimentional potential given by V(x) = Kx^3 for x >= 0, there K is a positive constant.
Is it a waste of time and resources to listen for signals from intelligent life in the Universe?
How many alpha particles are emitted per minute by 1cm^3 of 222^Rn monoatomic gas at a temperature of 27 degrees Celsius.
Calculate the Center of Mass of a cone with mass M and height H, and the angle at its head is alpha (or 2 alphas to cover the entire angle of the top).
Describe the role of collisions in the formation and evolution of galaxies.
A satellite of mass 830 kg orbits a planet of unknown mass at a distance of 29100 km from the planet's center. The orbital velocity of the satellite
A welded railway line, of length 15 km, is laid without expansion joints in a desert where the night and day temperatures differ by 50 K.
The Scenario: You are a team of official investigators, sent by Earth authorities to research the possibility of establishing diplomatic relations
Compare your result for (a) with the classical distance of closest approach in a head-on collision of a 6-MeV alpha particle with a gold nucleus (Z = 79).
Describe the movement of electrons required to develop electrical current.
How would you describe the surface, atmosphere and interior of Uranus. Who discovered Uranus and what are some the NASA missions?
How does the Moon cause the Earth's tides. What are the two types of tides and why do they occur?
For each planet in our solar system, its year is the entire time it takes the planet to revolve once around the sun.
For Ionizing Radiation, Nonionizing Radiation, and Filtration, describe the following:
What was the author's recommend solution? Do you agree or disagree with their recommendation? Why or why not?
A planet orbiting a star is occasionally hit by comets. Each comet has a mass of 4.8 * 10^6 kg of which 30% is rock and 70% is water ice.
Every night, all stars and planets rise in the _______ and set in the ________. What direction do the planets normally move in across the sky
Fluorine-18 has a half-life of 110 min. If 200 mg of fluorine-18 is stored at 6:30 am, how many mg of the isotope is till active at noon?
Any assistance with questions would be helpful. I don't understand if planets would ever move depending on temperature
What is a chance of a light car safely rounding an unbanked curve on icy road as compared to that of heavy car: worse, the same, better