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A Texas cockroach of mass 0.17 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has radius 15 cm, rotational inertia 4.5 10-3 kg·m2, a
How many kWh (kilowatt-hours) of energy does a 550W toaster use in the morning if it is in operation for a total of 10 minutes? (b) At a cost of $0.02 per kWh?
A ball with a horizontal speed of 1.25 rolls off a bench 1.00 above the floor. How long will it take the ball to hit the floor? How far from a point on the floor directly below the edge of the bench
Decompose the force vector into radial (i.e., parallel to ) and tangential (perpendicular to ) components as shown. Find the magnitude of the radial and tangential components, and . You may assume t
When a different particle with an electric charge of +3.10 x 10-12 C enters the velocity selector traveling east, the net force (due to the electric and magnetic fields) acting on it is 2.22 x 10-9
An FM radio station emits an electromagnetic wave which is received by a circuit containing a 3.33 ´ 10-7 H inductor and a variable capacitor set at 7.31 ´ 10-12 F. What is the frequenc
A block of mass 0.560 kg is pushed against a horizontal spring of negligible mass until the spring is compressed a distance x.
A charge moves at a speed of 4.5 * 10^-6m/s in a direction perpendicular to a uniform magnetic field, and the proton moves in a circle of radius 0.20m.
a proton accelerates from rest in a uniform electric field of 660 N/C. at one later moment, its speed is 1.60 Mm/s (nonrelativistic because v is much less than the speed of light).
if a lamp has a resistance of 136 when it opreates at a power of 1.00 x 10^2 W, what is the potential difference across the lamp?
A uniform disk turns at 3.4 rev/s around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk. T
At time t=0 a grinding wheel has an angular velocity of 30.0 . It has a constant angular acceleration of 35.0 until a circuit breaker trips at time t = 2.50 . From then on, the wheel turns through a
An alpha particle moving through a perpendicular magnetic field of 1.8 T experiences an acceleration of 2100 m/s2. What is the alpha particle's speed?
In an attempt to make a field goal, a placekicker kicks the football at an angle of 35 degrees above the horizontal with an initial velocity of 30 m/s. Calculate the total length of time that the ba
A toy car runs off the edge of a table that is 1.150 m high. The car lands 0.375 m from the base of the table.
Two slits are illuminated by a 618 nm light. The angle between the zeroth-order bright band at the center of the screen and the fourth-order bright band is 17.8. If the screen is 143 cm from the d
The air is pure and dry, and that charge builds up until a maximum electric field of 2.58x106 N/C builds up between the "plates". What is the maximum charge (in C) that the cloud can hold?
A car is moving down a street at 58 km/h. A child suddenly runs into the street. If it takes the driver 0.74 s to react and apply the brakes, how many meters will the car have moved before it begin
If the coefficient of kinetic friction between the box and elevator floor is Mk=0.32. What magnitude of force must you apply?
The scale of a spring balance reading from 0 to 250 has a length of 11.0 cm . A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.10 Hz .
Two blocks, one 0.8 kg and the other 2.0 kg are connected by a massless string over a frictionless pulley. Determine the acceleration of the blocks.
A wheel 90.0 cm in diameter accelerates uniformly from 235 rpm to 385 rpm in 6.0 s. How far will a point on the edge of the wheel have traveled in this time?
If the loop is placed in a uniform magnetic field of magnitude 0.300 T, what is the maximum torque that can act on it? The resistivity of copper is 1.7 10-8 · m.
A spaceship of mass 2.0 x 10^6 kg is crusing at a speed of 5.0 x 10^6 m s when the anitmatter reactor fails, blowing the ship into three pieces. one section having a mass of 5.0 x 10^5 kg, is blown
After the serenade, Juliet carefully moves to the rear of the boat (away from shore) to plant a kiss on Romeo's cheek. How far does the 75.0 kg boat move toward the shore it is facing?