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As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform cross-section. What length of wire do you end up with
A 4.7-g bullet leaves the muzzle of a rifle with a speed of 334 m/s. What force (assumed constant) is exerted on the bullet
A football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball (about 0.17 s)
A train is en route from Chicago to New York at 110km/h when the engineer spots a cow on the track. How far was the train from the cow when the engineer first applied the brakes
A spring-loaded cannon aimed at 40 degrees above the horizontal is on the last car of a long train of flat cars. What is the horizontal range observed by a person standing on the ground
A charge of -2.450?C is located at (2.650m , 4.502m ), and a charge of 1.745?C is located at (-2.796m , 0). Find the electric potential at the origin
You are traveling on an airplane. The velocity of the plane with respect to the air is 130 m/s due east. What is the Velocity with respect to the ground
A particle moves along the path y= -0.500x^2 (meters) with a constant speed of 5 m/s. Assume dx/dt >= 0. Determine the Cartesian components of velocity
You're driving at speed V0 when you spot a stationary moose on the road, a distance 'd' ahead. Find an expression for the magnitude of the acceleration you need
What is the total force (magnitude and direction) exerted by these two charges on a third charge q3=+5.00 nC located at y=-0.4000m
An object is 23.2 cm from the surface of a refiective spherical Christmas-tree ornament 5.11 cm in radius. What is the apparent position of the image
Amtrak's 20th-Century Limited is en route from Chicago to New York at 120km/h when the engineer spots a cow on the track. What is the magnitude of the train's acceleration
One afternoon, a couple walks five-sixthsof the way around a circular lake, the radius of which is1.70km. What are the magnitude and direction (relative to due east) ofthe couple's displacement
A home run is hit in such a way that the baseball just clears a wall 13 m high, located 135 m from home plate. Find the time it takes the ball to reach the wall
A bolt drops from the ceiling of a moving train car that is accelerating northward at a rate of 1.81 m/s2. What is the acceleration of the bolt relative to the train car
Assume that a honeybee is a sphere of diameter 1.000 cm with a charge of +49.0 pC uniformly spread over its surface. What is the magnitude of the net electrostatic force on the grain due to the bee
A student hits the cork sharply with her fist and the bottom of the bottle breaks. The student's fist has a mass of m = 0.480kg and moves downward at a speed of vi = 5.00m/s. What is the force that
Galileo's great-great-great grandchild stands at the top of a vertical tower 59.0 m tall with a Chianti bottle. How long does it take for the bottle to fall to the ground
An object which has a mass of 3.80 kg has been placed in a small spot of sun for 11.3 min which is shining through a window in a house. what is the temperature of the object after this time period
A ball is thrown straight up from the ground with speed v 0 . At the same instant, a second ball is dropped from rest from a height H , Find the time at which the two balls collide
A pilot releases a package from a plane flying horizontally at a constant speed. When the package reaches the ground below, what is the horizontal location of the plane
An isolated conductor of arbitrary shape has a net charge of +9.0 10-6 C. Inside the conductor is a cavity within which is a point charge q = +3.4 10-6 C. What is the charge on the cavity wall
The electric potential outside a charged conducting shpere is 200V, and 10.0 cm farther from the center of the sphere the potential is 150V. Determine the radius of the sphere
A baseball is seen to pass upward by a window 28m above the street with a vertical speed of 13 m/s. find the max height assuming the ball was thrown from the street
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 3.8 µm.(a) What is the dipole moment of this pair of charges