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we dont really use our textbooks book that much but we haveproblems like what is the differnce between temperature and heat.
An airtight box having a lid with an area of 13.9 in2 ( 89.68 cm2 ) is partially evacuated. what is the air pressure in the box
A jogger takes 49 minutes to run 22 times around a track that measures 0.25 mile. What is her average velocity in mph and m/s
A speedboat moving at 30 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of negative 3.5 m/s^2 by reducing the throttle. How long does it take boat to reach the buoy.
A capacitor with air between its plates is charged to 90 V and then disconnected from the battery. What is the dielectric constant of this glass
Find the change in momentum of a 1080 {rm kg} car that increases its speed from 5.0 {rm m/s} to 14.5 {rm m/s} in a time of 11 {rm s} while travelling in the same direction.
Estimate the force P to accelerate the 80 - Ib block at 6ft/sec2 to the right.
A carpenter on a space station has constructed a 30.0° ramp. A rocket moves past the space station with a relative speed of 0.720c in a direction parallel to side x. What does a person aboard the rocket measure for the angle of the ramp?
what is the average age of a bone that has 85 beta emissions per minute from a 20 g of carbon found in that fossil. half life time of carbon-14 is 5730 years
A monoenergetic beam of neutrons, cp = 4 X 1 0 10 neutrons/cm2-sec, impinges on a target 1 cm2 in area and 0. 1 cm thick. How many neutron interactions per second occur in the target
A 270-m-wide river flows due east at a uniform speed of 3.5 m/s. A boat with a speed of 7.6 m/s relative to the water leaves the south bank pointed in a direction 25o west of north. What is the (a) magnitude and (b) direction of the boat's velocit..
A car is moving at a constant velocity for 3s until it is 3.0 m from a yellow light. It slows to a stop in 2.0s. It remains stopped for 50s and then speeds up for 2s.
Torque can be calculated by multiplying the force (N) applied at 90 degrees to the lever arm at a distance (m) from the pivot point (point of rotation), what is the torque on the lever
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