A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. If the coefficient of kinetic friction is 0.40, at what rate does the box accelerate down the slope?
A) 3.1 m/s2
B) 3.4 m/s2
C) 3.7 m/s2
D) 4.1 m/s2
A
You might also like to view...
An aluminum kettle (mass = 100 g) of pure water (mass = 60 g) is at room temperature (20°C). The kettle and its contents are placed on a 1000-Watt electric burner and heated to boiling
Assuming that all the heat from the burner heats the kettle and its contents and that a negligible amount of water evaporates before boiling begins, calculate the amount of time required to bring the water to a boil. A) 3.5 min B) 8.1 min C) 4.9 min D) 7.3 min E) 4.0 min
Addition by 1. Components: Three vectors, src="https://sciemce.com/media/4/ppg__cp1pbb0313192044__f15g1q38g6.jpg" style="vertical-align: -5.0px;" />?5.5 m-2.5 m
A. 24° above the +x-axis
B. 24° below the +x-axis
C. 66° above the +x-axis
D. 66° below the +x-axis
, 
, and 
, have the components shown in the table. What angle does the resultant of these three vectors make with the +x-axis??x componenty component
?-3.5 m4.5 m
?0.00 m-6.5 m
Based on observations of the universal expansion, the age of the universe is about
A) 14,000 years. B) 14 million years. C) 14 billion years. D) 14 trillion years.
An engineer wants to use a river (minimum temperature of 
to cool his electrical plant which heats water with a boiler operating at 
If he wishes to produce 185 kW of power using this plant, what is the minimum energy he must supply to his boiler if it is maximally efficient?
A. 233 kW B. 187 kW C. 332 kW D. 418 kW