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Suppose your bathroom scale reads your mass as 85 kg, with an 8% uncertainty. What is the uncertainty in your mass? (Note that uncertainties should be reported to one significant figure.)
For a standard production car, the highest road-tested acceleration ever reported occurred in 1993, Find the magnitude of the car's acceleration
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 ? 108 m. Find the time it took for his voice to reach earth via radio waves
As part of a safety investigation, two 1200 {rm kg} cars traveling at 24 {rm m/s} are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.80 {rm s} to stop, and (b) car that hits a..
A 3.5 kg particle is projected with an initial speed of 4 m/s along a surface for which the coefficient of kinetic friction is 0.7 . Find the distance it travels given that the surface is horizontal
After being struck by the stone, the boat's velocity is 1.9 m/s, due east. Illustrate what is the mass of the boat? Assume the water offers no resistance to the boat's motion.
The operator of a linear accelerator tells a tour group that it is used to give protons energy of 860MeV. What is the value for the proton's total energy
A sealed contained containing 4 mol of gas is squeezed, changingits volume from 0.020 m3 to 0.018 m3. What was the original pressure and temperature of the gas
A 2.40-kg textbook is forced against a horizontal spring of negligible mass and force constant 300 N/m , compressing the spring a distance of 0.260m. find how far the textbook moves from its initial position before coming to rest
Write an initial response to the following three discussion prompts. Post your response to the discussion board. What if human vision were augmented to include an additional 100 nm on either the infrared or the ultraviolet sides of the visible spectr..
Find the equivalent resistance of the circuit in the figure. Find each current in the circuit. Find the potential difference across each resistor. Find the power dissipated by each resistor.
A record was set for stair climbing when a person ran up 1600 steps of the Empire State Building in 10 minutes 59 seconds. determine his average power output during the climb
An electric clothes dryer has a heating element with a resistance of 9.6 ?.
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