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At highway speeds, a particular automobile is capable of an acceleration of about 1.6m/s2. At this rate, how long does it take to accelerate from 80 km/h to 110 km/h?
A window air conditioner consumes 1500 W of electric power and has COP = 3.7. If it runs continuously for 18h , how much heat gets removed from the house? Express your answer to two significant figures and include the appropriate units.
(a) Calculate the R-value of a thermal window made of two single panes of glass each 0.100 in. thick and separated by a 0.200-in. air space. By what factor is the transfer of energy by heat through the window reduced by using the thermal window inst..
A long, straight wire carries a current of 4 A to the right. Next to the wire is a square loop with sides 1.0 m in length. Calculate the magnitude of the net force acting on the loop
A circular disk with a radius of 0.65 meters and mass of 0.26 kg has a hole cut in the middle.
a speed boat starts from rest and accelarates at +2.01m/s^2for 7 seconds at the end of this time the boat continues foran additional 6 seconds with an accelaration of +0.518 m/s^2, find total displacement of the boat
A toboggan approaches a snowy hill moving at 14.7m/s. Find the acceleration of the toboggan as it is going up the hill. Assume +x axis directed up the hill
An object that is 27 cm in front of a convex mirror has an image located 13 cm, How far behind the mirror is the image located when the object is 13 cm in front of the mirror
A 1500-kg car starts from rest to reach 60.0 miles/h in 7.50 s. What is the engine's power output
A shipping container is hauled up a roller ramp that iseffectively frictionless at a constant speed of 2.10 m/s by a2250 N force that is parallel to the ramp. what is the container's mass
A cylindrical aluminum pipe of length 1.43 m has an inner radius of 2.00 10-3 m and an outer radius of 3.00 10-3 m. What is the resistance of this unit
A flat (unbanked) curve on a highway has a radius of 220 m. A car rounds the curve at a speed of 18.0m/s. What is the minimum coefficient of friction that will prevent sliding
A passenger on a moving train walks at a speed of 1.70 m/s due north relative to the train. What are the magnitude and direction of the velocity of the train relative to the ground
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