A photon produced in the centre of the sun, travels about 1 cm
between collisions and there are 10^8 collisions per sec.
a) What is the average distance travelled in any direction between
steps?
b) What is the standard deviation about this value?
c) The radius of the Sun is 7x10^8 m. How many steps must a
photon take before having a 32% chance of being outside the
Sun?
d) How many years does the number of steps in “c” correspond
to?
A photon produced in the centre of the sun, travels about 1 cm between collisions and...
A flat circular coil of 1 cm radius is rotated at 10 revolutions per second about an axis that is perpendicular to a uniform magnetic field of magnitude 2.5 T. How many turns are required in the coil to generate a peak voltage of 750 mV? 2 turns 5 turns 8 turns 15 turns 20 turns An object is located at a distance of 5.7 cm from a thin lens with a radius of curvature of 66.0 mm. The image...
1. A force of 5.78x10-16 N acts on an unknown particle that travels at a 90 ° angle through a magnetic field. the velocity of the particle is 5.65x104 m / s and the field is 3.20x10–2 T, how many elementary charges does the particle carry? 2.What potential must be applied to a source of mass ions (9.99x1027 kg) to be accelerated by a region where there is a 1.2 T perpendicular magnetic field, if the minimum electric field to...
1. An airplane if flying horizontally at a constant height of 6 km above a fixed observation point. At a certain moment the angle of elevation θ is 30° and decreasing and the speed of the plane is 4 km/h. (a) How fast is 0 decreasing at this moment? (b) How fast is the distance between the plane and the observation point is changing at this moment? 2. Trajectory of a particle is described by parametrical equations as t,y P,...
1. There are two straight and parallel wires, separated by a distance D. In the first the current is i, while in the others it is 2i; both in the same sense. At what distance from the first wire will the magnetic field between the wires be zero? 2. A cable that is 5 meters above the ground has a current of 100 A. Determine the magnetic field at ground level. 3. An airplane flies at 200m / s in...
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REAL-WORLD APPLICATIONS 58. A truck with 32-inch diameter wheels is traveling at 59. A bicycle with 24-inch diameter wheels is traveling at 60 mi/h. Find the angular speed of the wheels in 15 mi/h. Find the angular speed of the wheels in rad/ rad/min. How many revolutions per minute do the min. How many revolutions per minute do the wheels wheels make? make? 60. A wheel of radius 8 inches is rotating 15°/s. What is 61. A wheel...
1-1 Suppose you want to make a scale model of a hydrogen atom. You choose, for the nucleus, a small ball bearing with a radius of 1.5 mm. The radius of the hydrogen atom is 0.529 × 10−10 m and the radius of the nucleus is 1.2 × 10−15 m. (a) What would be the radius of the model? (b) Suppose that now you want to make a scale model of the solar system using the same ball bearing as...
Question 1 (1 point) Saved Ultrasonic sound that travels at 1530 m/s in ocean water is bounced off the ocean floor and returns to the ship above. If the round trip takes 3 s, the depth of the water is Question 1 options: 2295 m. 1530 m. 3060 m. 4590 m. Question 2 (1 point) Saved A bass fiddle is louder than a harp because of its Question 2 options: sounding board. thicker strings. lower pitch. all of the above...
1. If the electric field in an EM wave in free space has a peak magnitude of 8.7×10−5V/m, what is the peak magnitude of the magnetic field strength? B0 = _________ T 2. A 1500-nF capacitor with circular parallel plates2.0 cm in diameter is accumulating charge at the rate of 39.0 mC/s at some instant in time. a) What will be the induced magnetic field strength 12.5 cm radially outward from the center of the plates? B1 = _______ T...
Winter Work Packet 2018 Th is packet is designed to help you study on kinematics and rotational motion during the break. It is requested that you complete this packet if you currently have less than a 65%, but all students are welcome to complete it. This packet will be due the first day of school, I will not accept it any later. I will be available to help with any questions regarding the problems via REMIND on Wednesday the second...
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...