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An electron moves at a speed of 480 m/s perpendicular to the direction of a uniform magnetic field of 1 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 109 nm)
At one instant a bicyclist is 53.0 m due east of a park's flagpole, going due south with a speed of 12.0 m/s. Then 37.0 s later, the cyclist is 53.0 m due north of the flagpole, going due east with
Determine electric field at position of the point charge (b) the force experienced by the point charge as a result of the electric field (c) potential difference at the position of the point charge
A 50.0 g Super Ball traveling at 26.0 m/s bounces off a brick wall and rebounds at 19.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the
At what time is the speed of the object three- fourths the terminal speed? How far has the object traveled in the first 5.018 s of motion?
A 2100 kg car traveling to the right at 32 m/s is chasing a second car of the same mass that is traveling to the right at 10 m/s.
If a flight mechanic drops a box of tools from a high-flying jumbo jet, it crashes to Earth. In 2008 an astronaut on the orbiting space shuttle accidentally dropped a box of tools. Why did the tools
When the airport sends out a rescue crew, how far will the crew to go directly to this place? In which direction in degrees south of east?
A particle undergoes the following consecutive displacements: 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displacement?
Engine B also delivers 1500 J of work, while rejecting heat to an even colder reservoir that has a temperature of T2. Find the temperatures.
List and describe the functions of the agranulocytes.
A person exerts a horizontal force of F = 190 N in the test apparatus shown in the drawing. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exe
Use kinematic equations to find the magnitude of the acceleration on the bullet as it is penetrating the block (ignore gravity, and assume that the force on the bullet as it penetrates the block is
A 66 kg boy and a 43 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the
A ranger in a national park is driving at 34.0 mi/h when a deer jumps into the road 190 ft ahead of the vehicle. After a reaction time t, the ranger applies the brakes to produce an acceleration of
The total electric flux from a cubical box 30.0 cm on a side is 1.65 × 103 N·m2/C. What charge is enclosed by the box?
What is the difference between the cephalothorax and abdomen
An electric dipole is formed from +/-4.0 nC point charges spaced 3.0 mm apart. The dipole is centered at the origin, oriented along the y-axis. What is the electric field strength at point (x,y) =
A 25g rifle bullet traveling 280m/s buries itself in a 3.6kg pendulum hanging on a 2.8m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal component
The loaded cab of an elevator has a mass of 2.7 x 103 kg and moves 228 m up the shaft in 21 s at constant speed. At what average rate does the force from the cable do work on the cab?
A 65 kg ice skater coasts with no effort for 85 m until she stops. If the coefficient of kinetic friction between her skates and the ice is µk = 0.13, how fast was she moving at the start of
Find the average magnitude of the induced emf if the change in shape occurs in 4.14 s, and the local 0.120 T magnetic field is perpendicular to the plane of the loop.
A horizontal pipe contains water at a pressure of 100 kPa flowing with a speed of 1.5 m/s. The pipe narrows to one-half its original diameter. What are the speed and the pressure of the water when
If the freezer keeps its interior at a temperature of -5.0°C in a 20.0°C room, what is its theoretical maximum performance coefficient? What is the theoretical maximum amount of ice this fre
Compare the sizes of the different digestive organs of the earthworm. Which organ is the largest in the earthworm? How does its size make it well suited for its function