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You decide to move your desk so your back is not facing the door. As you begin to move your desk, What is the coefficient of friction between the desk and the floor
Conside a spherical asteroid (radius 10km and constant mass density 3g/cm^3). The core extends to 3km, Determine the temperature at the center of the asteroid
A particle travels 16 times around a 18-cm radius circle in 37 seconds. What is the average SPEED (in m/s) of the particle
Consider a cylindrical shell of inner radius a = 1.10 cm, outer radius 2a, and length L = 2.05 m. This cylinder has a total charge Q = 138 nC. Find the potential difference between the inner and oute
A wire has a mass per unit length of 0.500 g/cm. what is the magnitude and direction of the minimum magnetic field
a falling rubber ball bounces off the floor. the velocity just before it hits the floor is Vi= (2.7m/2) x + (5.2m/s)y. what is the change in momentum of the ball from just before to just after it is i
A small solid sphere, with radius 0.25 cm and mass 0.56 g rolls without slipping on the inside of a large fixed hemisphere with radius 15 cm, What is its kinetic energy at the bottom
You calculated a value of 0.49 s ± 0.04 s for the time constant from your graph. If you used a 1M?, what is the equivalent capacitance of your circuit
A single conservative force acts on a 5.30-kg particle within a system due to its interaction with the rest of the system, calculate the work done by this force on the particle
A square loop (edge = 9.4 cm) is comprised of 41 turns of copper wire. The square loop is placed in the plane of the page, What is the magnitude of the induced emf in the square loop
Copper wire (resistivity 1.7x10-8 italic capital omega space straight m , circular cross section with radius 2.34 mm) is used to form 2 thousand circular loops of wire in a solenoid
A satellite is rotating around a planet in a circular orbit. The radius of the orbit to the center of the planet is R = 2.4*107 m, Express the magnitude of the centripetal acceleration of the satelli
Three identical capacitors are connected in series to give an equivalent capacitance CS, What is the ratio of CS/CP
In a carnival they often have a large r = 16 m, cylinder which people stand against the outer wall while it rotates with some velocity, What is the minimum velocity of the cylinder to make someone "s
The Doppler effect can be used to measure flow rates in blood. A sound wave is transmitted into a vein or an artery, What is the expected frequency shift
A 120 W lightbulb and a 90.0 W lightbulb are connected in a series. what is the current through the two bulbs
You are given a force versus distance graph and the initial velocity at the origin. How do you calculate velocity at any point in time on the graph
An object 2.0mm high is placed 12cm from a convex mirror of radius of curvature 12c, Determine the image distance using the mirror equation 1do+1di=1f
A 525-ohm resistor and a 295-mH inductor are connected in series with an ac generator with an rms voltage of 20.0V
If you are given a velocity versus time graph, and v initial is given, how do you calculate instantaneous acceleration
Two parallel wires of length 18 m are separated by a distance of a = 0.13 cm. The first carries a current of I1 = 5 A, What is the magnetic force on each wire
A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +60 N·m is applied to the wheel for 18 s, Find the moment of inertia of the
How long must a 0.70-mm-diameter aluminum wire be to have a 0.48A current when connected to the terminals, What is the current if the wire is half this length
An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2. what is the depth of the crater
A car is traveling with a constant velocity when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2, what was the magnitude of the car's original velocity