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A fox fleeing from a hunter encounters a 0.795 m tall fence and attempts to jump it. By how much does the fox clear the fence
You throw a ball straight down from an apartment balcony to the ground below. Find the height of the balcony
A space probe journeys at a constant velocity from Earth to Tau Ceti (a distance of 10.9 y) in a time of 1.5 y as measured by the probe's internal clock
An airplane has a speed 560 km/h. If a wind begins blowing from the southwest at a speed of 86.3 km/h, what will be the angle of west of south
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale
A block is released from rest on an inclined plane and moves 3.1 m during the next 3.9 s. What is the coefficient of kinetic friction k for the incline
he electron mass is 9×10?31 kg. What is the magnitude of the momentum of the electron
In building a particle accelerator, you manage to produce a uniform electric field of magnitude 4.03 × 105 N/C in one 40.5 cm section. How much work is required to move a proton through the sec
A ball whose mass is 1.3 kg is suspended from a spring whose stiffness is 3 N/m. Suppose this apparatus were taken to the Moon, where the strength of the gravitational field is only 1/6 of that on Ea
The velocity of a ball changes from ‹ 9, ?7, 0 › m/s to ‹ 8.96, ?7.14, 0 › m/s in 0.02 s, What is the rate of change of momentum of the ball
If an object is moving with constant momentum ‹ 8, ?14, ?4 › kg · m/s, What is the net force acting on the object
A net force of 36N accelerates a 5.1-kg mass over a distance of 12 m. What is the increase in kinetic energy of the mass
Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). Determine the two resistances
A rifle is aimed horizontally at a target 1,234.37 m away. What is the bullet's time of flight
An experiment finds that standing waves on a 0.800-m-long string, fixed at both ends, occur at 24.0 Hz and 32.0 HZ, but at no frequencies in between. What is the wave speed on the string
A cannon fires a cannonball from the top of a wall at a speed of 25.58 m/s and an angle of 17.44 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball h
A basketball player practices shooting three pointers from a distance of 7.63 m from the hoop, At what initial speed must he shoot to make the basket
a shot putter threw a shot-put with a speed of 13.4 m/s at an angle of 43 above the horizontal. How far did the shot-put travel in the horizontal direction
A rope applies a horizontal force of 193 N to pull a crate a distance of 1.89 m across the floor. What is the work done by the frictional force
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. What is the average speed of the bicyclist for the trip
A speed skater moving across frictionless ice at 8.1{\rm m}/{\rm s} hits a 6.0{\rm m} -wide patch of rough ice. What is her acceleration on the rough ice
An electron is suspended in a vacuum between two oppo- sitely charged horizontal parallel plates. What is the voltage across the plates
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 13.0 cm, giving it a charge of -17.0 microC. Find the electric field just inside the paint lay
A boat crosses a 500 m river. The water run at 5.9527 m/s due east. The boat is able to travel at 5 m/s relative to the water. what is the net displacement along the river bank
Richard is driving home to visit his parents. 135{\rm mi} of the trip are on the interstate highway where the speed limit is 65{\rm mph}. How many minutes does he save