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An airplanes airspeed (relative to still air) is 135 mph. The wind speed relative to the ground is 37 mph and is directed at theta = 51 deg
a partice moves along the path y=-0.090x^6(-7)meters with a constant speed of 4 m/s. assume dx/dt>_0. Determine the cartisian components of velocity and acceleration at x= - 2m
A bird stands on a dc electric transmission line carrying 3300A (Figure 1) . The line has 2.7×10?5? resistance per meter, and the bird's feet are 3.5cm apart
A ball is shot from the ground into the air. At a height of 10.60 m, the velocity is observed to be v = (8.60 m/s) i + (6.50 m/s) j
A solid sphere of radius R carries a volume charge density ?=?0e^r/R, Find an expression for the electric field strength at the sphere's surface
In the figure particles with charges q1 = +5e and q2 = -13e are fixed in place with a separation of d = 21.3 cm, what are the finite positive and negative values of x
Two small nonconducting spheres have a total charge of 89.0?C , Q1 <Q2. When placed 22.0cm apart, the force each exerts on the other is 13.0N and is repulsive
The electric field in a region of space has the components Ey = Ez = 0 and Ex = (5.90 N/(C·m))x. Point A is on the y axis at y = 4.30 m, What is the potential difference (in V) VB - VA
Imagine that we connect a formula36.mml lightbulb and an formula37.mml lightbulb in parallel and connect the set to a 19-V battery
The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 13, Determine qB
A 800kg car pushes a 1800kg truck that has a dead battery. When the driver steps on the accelerator, What is the magnitude of the force of the car on the truck
A uniform electric field of magnitude 249 V/m is directed in the negative y direction. A +13.4 ?C charge moves from the origin to the point (x, y) = (15.0 cm, 50.8 cm)
It is proposed that future space stations create an artificial gravity by rotating, What rotation period will provide "normal" gravity
A capacitor can be made from two sheets of aluminum foil separated by a sheet of waxed paper. what is the capacitance of this capacitor
A bullet is fired through a board 10.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board, Find the acceleration of the bullet as it passes through the
A 16-cm-diameter cylinder that is 39cm long contains 60g of oxygen gas at 20?C, What is the number density of the oxygen
A charge of -5.0 nC is uniformly distributed around a ring of radius 1.5 m that lies in the yz plane with its center at the origin, Calculate the work done in moving the point charge to the origin
Charge q is moving at constant speed v along the positive x-axis, Find the Cartesian components of the magnetic field at a point (x,y,z) for t > 0
A 0.740 m long brass pendulum experiences a 20.0°C temperature increase, Find the ratio of the change in period to the original period, What is the change in the period
A wave has the following properties: amplitude = 0.208 m, period = 0.687 s, wave speed = 13.7 m/s. The wave is traveling in the -x direction
A train is traveling due west with a velocity of 101.2 mph and then makes a turn to the northwest with a velocity of 95 mph
A proton is at the origin and an electon is at the point x = 0.41 nm, y = 0.36 nm. Find the electric FIELD at the proton,
A planet of mass m = 7.05 × 1024 kg is orbiting in a circular path a star of mass M = 4.95 × 1029 kg. The radius of the orbit is R = 8.35 × 107 km
Two point charges lie on the x axis. A charge of 6.2uC is at the origin, and a charge of -9.4uC is at x=10.0cm. What is the net electric field at x=+4.0cm
The electric potential is given by (50 V/m7)(xz6 + x3y4) in the region of space that includes the point (x,y,z) = (-2,7,-3) m