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A crate with mass 32.0 kg initially at rest on a warehouse floor is acted on by a net horizontal force of 156N. What acceleration is produced
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 50.0 degrees. find the angle the resultant force makes with the rope of dog A
Two forces, F1 vector and F2 vector, act at a point. F1 vector has a magnitude of 8.40N and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. What is the magn
A3.50-kg block starts from rest at the top of a 30.0° incline and slides a distance of1.90m down the incline in1.80s. Find the magnitude of the acceleration of the block
A constant electric field E=100 N/C*i is present throughout a region of space that includes the plane bounded by the x, compute The electric flux at the plane's surface
Analog voltmeter A has an equivalent resistance of 2.40 x 105 ? and a full-scale voltage of 50.0 V. What is its full-scale voltage
A current of 1.3 A flows through a 55.8 resistor for 5.2 min. How much heat was generated by the resistor
A generator at Hoover Dam can supply 396 MW of electrical power. Find the rate with which falling water must supply energy to the turbine
An immersible heater coil is to be designed to heat an insulated container with 4 liters of distilled water from 20 degrees to 50 degrees C in less than 30 minutes. what is the resistance of the hea
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
Three resistors having resistances of R1=1.54ohms, R2=2.37ohms, and R3=4.78ohms respectively, Which resistor dissipates the most power and why
A space station has a diameter of 1000 ft (300 m) and to rotate at a rate sufficient to cause occupants in the outer rings to experience a centripetal force roughly equal to the gravitational force
Two 2.1 cm 2.1 cm square aluminum electrodes are spaced 0.57 mm apart. What is the magnitude of the charge on each electrode
A car is moving with a velocity (3.0m/s)x + (1.0m/s)y and 3.0 seconds later its velocity is (6.0m/s)x - (3.0m/s)y.
A disk is turning with uniform circular motion. A point on the rim of the disk is moving with velocity v1 = (1.5 m/s)i + (2.0 m/s)j at t1 = 3.00 ms, find the magnitude of the point's centripetal acc
Light from a helium-neon laser (? = 633 nm) passes through a circular aperture, What is the diameter (in mm) of the hole
A charge of 910 C was passed through a wire in 3.10min. What was the average electric current during that interval
A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.9 m/s. how far does the sled travel on the level surface before coming to rest
Two manufactures of fiber optic material are in competition. ZipCo offers a fiber with a loss coefficient of 2.9E-3/m, Which company has the best offer
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates while a constant force acts on it. How much work is done by the force on the c
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 21 km/h
The Eskimo pushes the same 50.0-kg sled over level ground with a force of 2.25 102 N exerted horizontally, evaluate the coefficient of kinetic friction
A piece of aluminum pipe has an inner radius of r_a = 2.0 cm and an outer radius of r_b = 2.2 com. Calculate the resistance of a 1 m long piece of pipe
What is the resistance of a NichromeTM wire at 0.0 if its resistance is 108.9 at 12.5? The temperature coefficient of resistivity for NichromeTM is 4.00×10?4
You place a 3.63-mm-high diamond on the axis of and 12.7 cm from a lens with focal length -5.15 cm. How high is the image