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A police officer w/a radar gun is parked 20 feet off of the highway. The radar gun reads 75 mph when the car is 100 feet from the police car (as measured along the highway). what is the actual speed of the car?
I'm not sure how to set up the problem. Will the actual speed be less than or greater than 75? What does the problem setup look like and what steps are involved in solving it?
A 1.9 kilogram solid cylinder (radius = 0.20 meter, length = 0.50 meter) is released from rest at the top of a ramp and allowed to roll without slipping. When the cylinder reaches the bottom of the ramp, determine what is its translational kinetic ..
Oscillation of a 500 Hz tuning fork sets up standing waves in a string clamped at both ends. The wave speed for the string is 430 m/s. What is the length of the string
A sinusoidal force with an amplitude of 1.70 N drives the system. At what frequency will the force make the object vibrate with an amplitude of 0.440 m
A weightless spring with spring constant k1 hangs from an elevated support. Find the total distance the pair of springs is extended
A 7.76 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.34. find the magnitude of the external force acting on the crate
Certain criteria have been met which suggest that an intangible asset has been created. Illustrate w hat amount should be recognized as research and development expense in 2011 using U.S. GAAP?
A physical pendulum is composed of a sphere whose center of gravity is attached to a thin rod. The sphere has a moment of inertia of 2/5 MR2. The period of the physical pendulum is
The coefficient of static friction between the m =2.90 kg crate and the 35.0°incline of the figure below is 0.320.What minimum force vector F must be applied to the crate perpendicular tothe incline to prevent the crate from sliding down the incline?
If the difference in pressure on the two sides of a closed door of area 2m^2 is 0.01 atm, what is the net force on the door
The force among two charges are given by F=Kq1q2/rsq where k=9.0x109 nm2/c3. Using coulombs law what is the force among a pair of like charged particles if 1 particle is 2.0 coulombs and the second is 2.0 coulombs and they are 1m apart? Enter in bil..
One mole of a monatomic gas at 400 K is reversibly taken to half of its original volume by an isobaric process. How much work is done by the gas?
A professor's office door is 0.9 wide, 2.2 high, 4.2 thick; has a mass of 23 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. while the door is open and at rest, the door closer exerts a torqu..
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