Predict/Calculate Two blocks, stacked one on top of the other, can move without friction on the horizontal surface shown in Figure 6-67 . The surface between the two blocks is rough, however, with a coefficient of static friction equal to 0.47. (a) If a horizontal force F is applied to the 5.0-kg bottom block, what is the maximum value F can have before the 2.0-kg top block begins to slip? b If the mass of the top block is increased, does the maximum value of F increase, decrease, or stay the same? Explain.
Predict/Calculate Two blocks, stacked one on top of the other, can move without friction on the horizontal surface shown in Figure 6-67 . The surface between the two blocks is rough, however, with a coefficient of static friction equal to 0.47. (a) If a horizontal force F is applied to the 5.0-kg bottom block, what is the maximum value F can have before the 2.0-kg top block begins to slip? b If the mass of the top block is increased, does the maximum value of F increase, decrease, or stay the same? Explain.
Predict/Calculate Two blocks, stacked one on top of the other, can move without friction on the horizontal surface shown in Figure 6-67. The surface between the two blocks is rough, however, with a coefficient of static friction equal to 0.47. (a) If a horizontal force F is applied to the 5.0-kg bottom block, what is the maximum value F can have before the 2.0-kg top block begins to slip? b If the mass of the top block is increased, does the maximum value of F increase, decrease, or stay the same? Explain.
A capacitor with a capacitance of C = 5.95×10−5 F is charged by connecting it to a 12.5 −V battery. The capacitor is then disconnected from the battery and connected across an inductor with an inductance of L = 1.55 H .
(D)What is the charge on the capacitor 0.0235 s after the connection to the inductor is made? Interpret the sign of your answer. (e) At the time given in part (d), what is the current in the inductor? Interpret the sign of your answer. (f) Atthe time given in part (d), how much electrical energy is stored in the capacitor and how much is stored in the inductor?
Close-up view
etermine;
The volume of the object given that the initial level of water in the measuring cylinder
23cm3.
The density of the object.
simple cell made by dipping copper and zinc plates into dilute sulfuric acid solution. A bull
onnected across the plates using a wire.
State what constitute current flow through the wire
The bulb connected across is observed to light for some time and then goes out. State t
possible
asons for this observation.
State two ways in which the processes named in question (b) above can be minimized t
the bulb light for a longer period.
ead
is rated 80Ah. Determine the current that can be drawn continuously
Answers with -1.828, -1.31 or 939.3 are not correct.
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