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What is the component of the positron's velocity perpendicular to the magnetic field? Second part: What is the component of the positron's velocity parallel to the magnetic field?
Find the magnetic force exerted on an electron moving vertically upward at a speed of 1.72 x 107 m/s by a horizontal magnetic field of 0.502 T directed north. What is the direction of this force?
1) Assuming block two does not move relative to the table and block one is rotating around the table, what is the magnitude of the velocity of the block one in m/s? 2)How much time in seconds does i
A ball is thrown toward a cliff of height with a speed of 35 and an angle of 60 above horizontal. It lands on the edge of the cliff 3.7 later. What is the ball's impact speed?
How long does it take electrons to get from a car battery to the starting motor? Assume the current is 200 A and the electrons travel through a copper wire with cross-sectional area 0.28 cm2 and len
A sailboat is traveling east at 5.9 . A sudden gust of wind gives the boat an acceleration = (0.80 , 40 north of east). What is the boat's speed 9.0 later when the gust subsides? What is the boat's
The insulating dielectric is magnesium oxide (MgO), which has a dielectric constant of 9.7. Calculate the capacitance of a Thermocoax cable of 5.45 m length.
A spherical, non-conducting shell of inner radius r1= 10 cm and outer radius r2= 15 cm carries a total charge Q = 15 oC distributed uniformly throughout the volume of the shell. What is the magnitud
You are traveling on an airplane. The velocity of the plane with respect to the air is 100.0 m/s due east. The velocity of the air with respect to the ground is 36.0 m/s at an angle of 30° west
A car is moving with constant velocity v, and has wheels of radius R. The car drives over a clump of mud and the mud with mass m sticks to the wheel with an adhesive force of f perpendicular to the
A ball of mass m is released from height h1. It slides along the smooth surface and collides elastically with the second ball at rest of mass 1/2m at the bottom of the track. How high will the balls
The star-forming portion of our Galaxy consists of a highly flattened circular disk about 30 (30,000 ) in diameter. Interstellar extinction limits our view to within a radius of about 5 kpc of the S
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. On a warm day (88 F), an air-filled balloon occupies a volume of 0.300m^3 and has a pressure of 2
Imagine that you have a 100 W incandescent light bulb (shame on you!), and it is shining uniformly into 4 steradians (outward equally in all directions). Please estimate for me (without a calculator
what is the volume of the air in the container? (Assume that the air behaves as an ideal gas.) answer in m3
Assume that this electric field is produced by a single, point charge. (a) Find the location of the point charge. (b) Find the sign and magnitude of its charge.
A capacitor is formed from a hollow copper sphere of inner radius 44.5 cm and outer radius 55.6 cm. Calculate the capacitance of the sphere in microfarads.
A rod of length L0 moves iwth a speed v along the horizontal direction. The rod makes an angle of (theta)0 with respect to the x' axis (a) show that the length of the rod as measured by a stationary
(a) What is the value of time constant ?? (b) How much energy has been "lost" during these four oscillations?
A 70.1 kg student is riding a looping roller coaster. At the top of the loop the student is moving with a speed of 17.5 m/s. The loop has radius of 20.1 m at the top. Find the normal force from the
A Young's interference experiment is performed with monochromatic light. The separation between the slits is 0.500 mm, and the interference pattern on a screen 2.80 m away shows the first side maxim
Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the direction along the x-axis.)
A surface completely surrounds a +3.9 10-6 C charge. Find the electric flux through this surface when the surface is a sphere with a radius of 0.30 m, a sphere with a radius of 0.15 m, and a cube wi
The ball is in equilibrium, with the thread making an angle of 30.0° with respect to the vertical. The area of each plate is 0.0157 m2. What is the magnitude of the charge on each plate?