b. A constant force F is exerted on an object which then moves up a smooth inclined plane with a constant speed of 6m/s. The mass of the object is 5.0 kg and the angle of inclination of the plane is 30.0°. What is the power delivered by the force? [Answer in 3 significant figures]
b. A constant force F is exerted on an object which then moves up a smooth inclined plane with a constant speed of 6m/s. The mass of the object is 5.0 kg and the angle of inclination of the plane is 30.0°. What is the power delivered by the force? [Answer in 3 significant figures]
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need help with B only please
![4.
a.
A weightlifter curls a 100 kg bar, raising it each
time a distance of 0.61 m. How many times must he
repeat this exercise to burn off all the energy in one
energy bar that contains 22 g of carbohydrates? You can
assume 25% efficiency and use g = 9.8 m/s². [Watch
out: need to burn off ALL energy!] [Answer in whole
integer]
TABLE 11.1 Energy in fuels
Fuel
Hydrogen
Gasoline
Fat (in food)
Coal
Carbohydrates
(in food)
Wood chips
Energy in 1 g of fuel
(in kJ)
121
44
38
27
17
15](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6577ebe-9df1-401c-8d05-cde8be3f88aa%2Fb9d37a3a-10cf-40e2-a27e-606a8812d528%2F4t7jzp8_processed.png&w=3840&q=75)
Transcribed Image Text:4.
a.
A weightlifter curls a 100 kg bar, raising it each
time a distance of 0.61 m. How many times must he
repeat this exercise to burn off all the energy in one
energy bar that contains 22 g of carbohydrates? You can
assume 25% efficiency and use g = 9.8 m/s². [Watch
out: need to burn off ALL energy!] [Answer in whole
integer]
TABLE 11.1 Energy in fuels
Fuel
Hydrogen
Gasoline
Fat (in food)
Coal
Carbohydrates
(in food)
Wood chips
Energy in 1 g of fuel
(in kJ)
121
44
38
27
17
15
![b.
A constant force F is exerted on an object which then moves up a smooth inclined plane
with a constant speed of 6m/s. The mass of the object is 5.0 kg and the angle of inclination of
the plane is 30.0°. What is the power delivered by the force? [Answer in 3 significant figures]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6577ebe-9df1-401c-8d05-cde8be3f88aa%2Fb9d37a3a-10cf-40e2-a27e-606a8812d528%2Fgw89fnf_processed.png&w=3840&q=75)
Transcribed Image Text:b.
A constant force F is exerted on an object which then moves up a smooth inclined plane
with a constant speed of 6m/s. The mass of the object is 5.0 kg and the angle of inclination of
the plane is 30.0°. What is the power delivered by the force? [Answer in 3 significant figures]
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