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Use the worked example above to help you solve this problem. A car of mass m is on an icy driveway inclined at an angle θ = 21.0°, as shown in the figure.
(a) Determine the acceleration of the car, assuming the incline is frictionless. m/s2
(b) If the length of the driveway is 23.5 m and the car starts from rest at the top, how long does it take to travel to the bottom? s
(c) What is the car's speed at the bottom? m/s
An 88% ef?cient pump is used to transport 30-C water from a lower reservoir through an 8-cm-diameter galvanized iron pipe to a higher reservoir whose surface is 40 m above the surface of the lower one.
A steam turbine operates with 1.6 MPa and 350 degrees C steam at its inlet and saturated vapor at 30 degrees C at its exit. The mass flow rate of the steam is 16 kg/s, and the turbine produces 9000 kW of power. Determine the rate at which heat is los..
A 47 kg skier starts from rest at height H = 19 m above the end of a ski-jump ramp as shown. as theskier leaves the ramp, his velocity makes an angle theta= 29 above the horizontal. neglect air resistance and friction. calculate the speed of the s..
an air conditioner operates on 800w of power and has a performance coefficient of 2.80 with a room temperature of 22.0
A 10-m-long glider with a mass of 680kg (including the passengers) is gliding horizontally through the air at 26m/s, What is the glider's speed just after the skydiver lets go
must include free body diagrams with applications of newton's 2nd law 1) a 3.0 kg ball is attached to two pieces of string, compute the tension in the upper string
an ice skater moves without friction on a frozen pond. while traveling at 7.5 ms she finds that it takes 12 s to travel
Diffracted light from a circular aperture is viewed on a distant viewing screen, Find the radius of the aperture if the wavelength of light is 680 nm
The equilibrium separation between the nuclei of the nitrogen molecule (N2) is 0.110 nm and the mass of each nitrogen nucleus is 14.0 u, where u = 1.66 x 1027 kg. For rotational energies, the total energy is due to rotational kinetic energy.
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.3 × 10-4m2, find the cross-sectional area of the water stream at a point 0.11 m below the faucet
question a cord attached to a cart that can slide along a frictionless horizontal rail aligned along an x axis. the
An interference filter has an effective bandwidth of 10 nm. Would it be feasible to employ such a filter to isolate the calcium emission line at 422.7 nm from the potassium emission line at 404.4 nm? Assume that the signals are triangular in shape. S..
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