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Q. A drunk driver in a 1600kg car plows into a 1500kg parked car with its brake set. Police measurements show that the two cars skid together a distance of 19m before stopping. If the effective coefficient of friction is 0.78, how fast was the drunk going just before the collision?
Q. 1. find the wavelength of the ultrasonic wave emitted by a bat if it has a frquency of 4.0x10^4Hz.2. radio station KSON in San Diego broadcasts at both 1240kHz(AM) and 97.3MHz(FM). a)Which of these signals, AM or FM, has the loner wavelength?
Find out distance the two drivers travel
The lines in a grating are uniformly spaced at 1520nm. Analyse the angular separation of the second order bright fringes between light of wavelength 603nm and 615.4 nm. Reply in units of mrad.
A school bus takes 0.89 h to reach the school from your house. If an average velocity of the bus is 21.1 km/h to the east, what is the displacement.
lady ate a whole medium size pizza storing up 120 food Calories. This energy is used to heat up 2 liters of water from a certain initial temperature to a final temperature of 80 deg.C, what was the initial temperature of the water?
How long does the total trip last
What is an angular speed about the center of mass
Two joggers run at a constant velocity of 7.5 m/s toward the east. At time t=0, one is 15m east of the origin and te other is 15m west.
suppose that O&M costs (staff, maintenance, decommissioning, waste handling, training, refurbishment reserve and other charges) can be approximated by 12% of the debt charge and the fuel costs for the ACR's enriched fuel is about 3 percent of the deb..
What is an average speed of the runner
A box of books weighing 334 N is shoved across the floor by a force of 479 N exerted downward at an angle of 33° below the horizontal. What is the maximum coefficient of kinetic friction between the box and the floor that allows the box to move with ..
What is an acceleration of the particle at the instant
An elastic cord is 66 cm long when a weight of 66 N hangs from it but is 86 cm long when a weight of 76 N hangs from it. What is the "spring" constant k of the elastic cord.
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