General Questions: A person is using a rope to lower a 5.0-N bucket into a well with a constant speed of 2.0 m/s. What is the magnitude of the force exerted by the rope on the bucket?
A. 0.00 N
B. 2.0 N
C. 5.0 N
D. 10 N
E. 49 N
Answer: C
You might also like to view...
How many seconds are in one year? (Calculate this, do not look it up.)
A) about 380 million (380,000,000, or 3.8 × 108) B) about 30 million (30,000,000, or 3 × 107) C) about 86 thousand (86,000, or 8.6 × 105) D) about 3600 (3.6 × 103)
There are 640 acres in a square mile, and 5280 feet in one mile. How many acres are there in a hectare, a square one hundred meters on each side?
What will be an ideal response?
A 40.0-L container is divided into two equal parts by a rubber membrane. One half of the container has 1.80 moles of an ideal monatomic gas at 270 K, and the other half is a vacuum
The container does not allow any gas to escape but is free to exchange heat with the surroundings. The membrane breaks, the gas expands isothermally and eventually the gas reaches a new equilibrium condition occupying the entire volume. What is the change in entropy of the gas? A) 10.4 J/K B) 9.16 J/K C) 12.5 J/K D) 14.3 J/K E) 16.4 J/K
Explain what types of information can be obtained from a line spectrum
What will be an ideal response?