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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?
A transformer has 200 turns on its primary and 12 turns on its secondary. If the input voltage is 2000 V, What is the output voltage?
A 96.0-mH inductor and a 8.70-μF capacitor are connected in series. Determine the rms voltage across the inductor.
How high a tree would a 80.0 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount?
At once the he see what looks like another match about 4 m away from him. As it turns out, a mirror hangs on one wall of the room. how far is Gustav from he wall with the mirror?
A string 1.6 m long with a mass of 2.3 g is stretched between two fixed points with a tension of 90 N, find the frequency of the fundamental of the string
Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg. The density
What is the least uncertainty in any simultaneous measurement of the momentum component px of the electron.
After the dielectric has been inserted, the charge on each plate has magnitude 45.0 pC. What is the dielectric constant K of the dielectric?