Part B Plant organelle functions
Drag the correct description under each cell structure to identify the role it plays in the plant cell.
In: Biology
Part A - Comparing plant cells and animal cells
Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures. In this activity, you will indicate which cell structures are found only in plant cells, only in animal cells, or in both plant and animal cells.
Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin.
In: Biology
Which of the following statements about the nuclear envelope is FALSE?
In: Biology
Which molecules do not normally cross the nuclear memebrane? Nucleotide Triphosphates proteins mRNA DNA
In: Biology
8. Refer to Table 29-5. If the bank faces a reserve requirement of 6 percent, then the bank
9. Refer to Table 29-5. If the bank faces a reserve requirement of 8 percent, then the bank
10. Refer to Table 29-5. Suppose the bank faces a reserve requirement of 10 percent. Starting from the situation as depicted by the T-account, a customer deposits an additional \(\$ 60,000\) into his account at the bank. If the bank takes no other action it will
In: Economics
Which of the following policies can the Fed follow to increase the money supply?
In: Economics
Which of the following is NOT an example of monetary policy?
In: Economics
The agency responsible for regulating the money supply in the United States is
In: Economics
In: Physics
In: Physics
What is the speed of an electron that has been accelerated from rest through a potential difference of 1050?
In: Physics
What is the electric potential energy of the group of charges in the figure?
In: Physics
A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 45000 m/s.
What will be the final speed of an electron released from rest at the negative plate?
Express your answer to two significant figures and include the appropriate units
V=_________
In: Physics
Each part of (Figure 1) shows one or more point charges. The charges have equal magnitudes.
A) For case (a), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same?
For case (a), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?
Electric potential energy increases. | |
Electric potential energy decreases. | |
Electric potential energy stays the same. | |
It's impossible to determine. |
B)For case (b), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same?
For case (b), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?
Electric potential energy increases. | |
Electric potential energy decreases. | |
Electric potential energy stays the same. | |
It's impossible to determine. |
C)For case (c), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same?
For case (c), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?
Electric potential energy increases. | |
Electric potential energy decreases. | |
Electric potential energy stays the same. | |
It's impossible to determine. |
D)For case (d), if a positive charge is moved from position i to position f, does the electric potential energy increase, decrease, or stay the same? For case (d), if a positive charge is moved from position to position, does the electric potential energy increase, decrease, or stay the same?
Electric potential energy increases. | |
Electric potential energy decreases. | |
Electric potential energy stays the same. | |
It's impossible to determine. |
In: Physics
As shown, two protons are launched with the same speed from point 1 inside a parallel-plate capacitor. One proton moves along the path from 1 to 2 , the other from 1 to 3 . Points 2 and 3 are the same distance from the positive plate.
a. Is \(\Delta U_{1 \rightarrow 2}\), the change in potential energy along the path \(1 \rightarrow 2\), larger than, smaller than, or equal to \(\Delta U_{1 \rightarrow 3}\) ? Explain.
b. Is the proton's speed \(v_{2}\) at point 2 larger than, smaller than, or equal to the proton's speed \(v_{3}\) at point 3 ? Explain.
In: Physics