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A car is negotiating a flat circular curve of radius 50 m with aspeed of 20 m/s. The maximum centripetal force (provided by staticfriction) is 1.2e4 N. What is the centripetal acceleration of the car?
________m/s^2
A 2.65 kg mass oscillates back and forth on a spring with a velocity vector that varies as a function of time according to the following v(t)=(3.95cm/s) sin [0.79 rad/s], What is the maximum speed of mass
A screen 1-m wide is 2.0 m from a pair of slits illuminated by 633-nm laser light, with the screen's center on the center line of the slits. How many fringes will be visible on the screen
Why do proto-stars, black holes, X-Ray binaries with jets, active galaxies and quasars have very similar geometries (i.e. how they appear)? What mechanisms dictate this geometry? What type of differences are there between these geometries? Are their ..
Suppose a car is traveling at 14 m/s, and the driver sees a traffic light turn red. After 0.50 s has elapsed (the reaction time) the driver applies the brakes and the car decelerates at 8.0 m/s2.
a satellite has a moment of inertia of I=8000 kgm^2 and rotates at 3 rev per min. what will be the rate of rotation after the panels has been deployed
A flat coil of wire of 18 turns and area 4 m^2 is placed in a uniform magnetic field of 0.6 T. Determine the magnetic flux through the coil
A cube is floating in a lake. IT is observed that 0.4 m of the cube is underwater with the remaining 0.1 m above. The density of water is 1000 kg/m^3. what is the magnitude of the foce that is exerted
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. In a standard treatment, 2.0 kg of beef receives 4.5 kGy of radiation in 48 s. (A) How much energy is deposited in the beef in kJ? (B) What is the a..
A small sphere with a mass of 1.0 g is suspended at the end of an insulating string of length 50 cm within a uniform horizontal electric eld of 12,000 N/C. What is the value of the charge on the small sphere
It stops 90 cm from where you free it. The spring steady is 370 N/m. What is the coefficient of kinetic friction between the block and the table.
A sphere of aluminum 11.3 cm in diameter is suspended in oil (density = 1 grams/cm3). Find the tension in the supporting string in Newtons
A car rounds a 230 m -radius curve at 14.5 m/s. If the horizontal force acting on the car is 790 N, what's the car's mass
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