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A magnetic field parallel to the z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds. What is the size of the induced current in the loop at t = 0.470s?
By what amount (in Pa) does the air pressure change as it flows through the constriction? Treat the air as an ideal fluid, and take the density of air to be 1.2 kg/m3.
A 73.0 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted into place?
What physical quantity is different between the six strings of the guitar that makes them sound distinctively? Assume they all have the exact same length and tension.
A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How many kilograms of nitrogen are boiled away in a period of 7.50 h?
A robot probe drops a camera off the the rim of a 389 m high cliff on Mars, where the free fall acceleration is 3.7 m/s^2. Find velocity with which it hits the ground and the time required for it t
Materials used as insulators, such as glass or rubber have high resistivity. What is the mathematical relationship between the sigma + the rho of a metal?
Find the magnetic force on the electron when the earth's field has a horizontal component of 0.250 G and dips 60.0° below the horizontal (values typical in California).
A nut comes loose from a bolt on the bottom of an elevator as the elevator is moving up the shaft at 3.00 m/s. The nut strikes the bottom of the shaftin 2.0 s.
You pull a rope with a certain force and a wave travels in the rope with a certain velocity. If you double your force the velocity in the wave is now?
A bullet of mass m = 16.9 g traveling horizontally at speed vo = 492 m/s strikes a block of mass M = 835 g sitting on a frictionless, horizontal table. This time, however, it comes out the other si
A meter long 1.0cm diameter nichrome heater wire is connected to a 12V battery. What is the magnetic field strength 1.0cm away from the wire?
What is the flux of Zn moving down the rod? Write down all your assumptions. you will need to look up the density of copper. You do not need to account for the variation in density with alloy
Compare and contrast nuclear fission with nuclear fusion. Which process is most likely to be used to provide energy for future generations? Defend your choice.
Compare and contrast alpha, beta, and gamma radiation. Be sure to include the potential damage each may cause to living tissue.
Consider a cylindrical segment of a blood vessel 2.9 cm long and 1.70 mm in diameter. What additional outward force would such a vessel need to withstand in the person's feet compared to a similar
You may assume there is no friction between the stick and the bowling ball, though friction with the floor must be taken into account. Find the magnitude of the force exerted on the stick by the bow
Recall that the surface brightness of an exponential disk has the form I(R)= I0e^(-R/hR)where I0 is the central surface brightness and hR is the disk scale length. The total brightness is given by i
For the circuit shown below, C = 0.123 µF and = 103 V. The switch throw is rotated to contact b after having been at contact a for a long time, and 3.47 s later the potential difference acros
A doubly charged helium atom whose mass is 6.6 10-27 kg is accelerated by a voltage of 2200 V. (a) What will be its radius of curvature if it moves in a plane perpendicular to a uniform 0.308 T field?
Culture teaches people what values are important and may determine if they view themselves as independent, emphasizing being unique and expressing oneself, or interdependent, emphasizing a social c
What is the moment of inertia of the door? If you let go of the open door, what is its angular acceleration immediately afterward?
Find the average forces exerted on (a) the car that hits a line of water barrels and takes 1.8s to stop, and (b) the car that hits a concrete barrier and takes 0.5s to stop.
A 25 kg chair initially at rest on a horizontal floor requires a 363 N horizontal force to set it in motion. Once the chair is in motion, a 334 N horizontal force keeps it moving at a constant veloc
A person lifts a 500N barbell overhead. the barbell is 1.84m long and half the weight is loaded on each(assuming the bar is weightless). if the hands grip the bar 30.0cm and 40.0cm on each side fro