Homework Answers
Answers:
1) linear speed - increases
2) angular speed- increases
3) angular momentum - remains the same
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During this process, does the puck's linear speed increase, decrease, or remain the same? A puck...
A puck on a horizontal, frictionless surface is attached to a string that passes through a...
A puck on a horizontal, frictionless surface is attached to a
string that passes through a hole in the surface, as shown in the
figure(Figure 1). As the puck rotates about the hole, the string is
pulled downward, bringing the puck closer to the hole.
a.) During this process, the puck's linear
speed increases because _____. Explain.
b.) During this process, the puck's angular
speed increases because _____. Explain.
c.) During this process, the puck's angular
momentum remains the same...
Mixed Review 21.107 1 of 42> Constants Part A Consider the circuit shown in the figure...
Mixed Review 21.107 1 of 42> Constants Part A Consider the circuit shown in the figure (Figure 1), in which three lights, each with a resistance R, are connected in series. The circuit also contains an open switch When the switch is closed, does the intensity of light 2 increase, decrease, or stay the same? O The intensity of light 2 increases. O The intensity of light 2 decreases O The intensity of light 2 stays the same Submit Request...
an ice puck of mass m revolves on an icy surface in a circle at speed...
an
ice puck of mass m revolves on an icy surface in a circle at speed
v at the end of a horizontal string of length L. the tension in the
string is T.
write the equation for centripetal force, and substitute the
values T and L appropriately. then with a bit of elementary
algebra, rearrange the equation so that it solves for mass.
find the mass of the puck when the length of the string is 2.0
m, string...
Mixed Review 21.108 2 of 42> tants Part A Consider the circuit shown in the figure(Figure...
Mixed Review 21.108 2 of 42> tants Part A Consider the circuit shown in the figure(Figure 1), in which three lights, each with a resistance R, are connected in series. The circuit also contains an open switch Does the current supplied by the battery increase, decrease, or remain the same when the switch is closed? O increase decrease remain the same Submit Request Answer Figure 1 of 1 ? Part B Choose the best explanation from among the following The...
At 900 °C, K = 0.0108 for the reaction CaCO3(8) F CaO(s) + CO2(g) A mixture...
At 900 °C, K = 0.0108 for the reaction CaCO3(8) F CaO(s) + CO2(g) A mixture of CaCO3, CaO, and CO2 is placed in a 10.0-L vessel at 900 °C. For the following mixtures, will the amount of CaCO3 increase, decrease, or remain the same as the system approaches equilibrium? Part A 15.0 g CaCO3, 15.0 g CaO, and 4.25g CO2 increases decreases O remains the same Submit Request Answer Part B 2.50g CaCO3, 25.0 g CaO, and 5.66 g...
Heating Oil prices increase by 46 percent and other things remain the same. As a result,...
Heating Oil prices increase by 46 percent and other things remain the same. As a result, there is O A. More information is needed to determine if the demand for Heating Oil increases or decreases. OB. no change in the quantity of Heating Oil demanded. O C. an increase in the demand for Heating Oil. LOD. a decrease in the quantity of Heating Oil demanded. O E. a decrease in the demand for Heating Oil.
Indicate whether the entropy of the system would increase or decrease in each of the following...
Indicate whether the entropy of the system would increase or
decrease in each of the following reactions (some reactions are not
balanced).
Part D Entropy of the system O2(g) →O3(g) O increases O decreases O cannot be determined Submit Request Answer
Vi Lonstants During stress or trauma, a person can start to hyperventilato The person may then...
Vi Lonstants During stress or trauma, a person can start to hyperventilato The person may then be instructed to breathe into a paper bag to avoid tainting CO (8) + 2H (1) Ma H5O" (sq) + HCO3 (aq) Part A How dom blood pH change during hyperventilation? O Hyperventilation will increase the CO, level in the blood, which increases the H,O and decreases the blood pH. Hyperventilation wil lower the CO, level in the blood, which decreases the H.O and...
ip a 1.2 kg block is tied to a string that is wrapped around the rim...
ip a 1.2 kg block is tied to a string that is wrapped around
the rim of a pulley of radius 7.1cm. the block is released from
rest. EXPLAIN
l, LhandlerSig Hide Timer Part A Assuming the pulley is a uniform disk with a mass of 0.31 kg, find the speed of th block after it has fallen through a height of 0.50 m Express your answer using two significant figures. 2 m/s Submit Submit Request Answer Part B 1033...
LEARN MORE REMARKS As the analysis of part (a) shows, the speed of the water emerging...
LEARN MORE REMARKS As the analysis of part (a) shows, the speed of the water emerging from the hole is equal to the speed acquired by an object falling freely through the vertical distance h. This is known as Torricelll's law. QUESTION As time passes what happens to the speed of the water leaving the hole? It remains the same. It first decreases and then increases. It decreases It first increases and then decreases. It increases. PRACTICE IT Use the...
A puck on a horizontal, frictionless surface is attached to a
string that passes through a hole in the surface, as shown in the
figure(Figure 1). As the puck rotates about the hole, the string is
pulled downward, bringing the puck closer to the hole.
a.) During this process, the puck's linear
speed increases because _____. Explain.
b.) During this process, the puck's angular
speed increases because _____. Explain.
c.) During this process, the puck's angular
momentum remains the same...
Mixed Review 21.107 1 of 42> Constants Part A Consider the circuit shown in the figure (Figure 1), in which three lights, each with a resistance R, are connected in series. The circuit also contains an open switch When the switch is closed, does the intensity of light 2 increase, decrease, or stay the same? O The intensity of light 2 increases. O The intensity of light 2 decreases O The intensity of light 2 stays the same Submit Request...
an
ice puck of mass m revolves on an icy surface in a circle at speed
v at the end of a horizontal string of length L. the tension in the
string is T.
write the equation for centripetal force, and substitute the
values T and L appropriately. then with a bit of elementary
algebra, rearrange the equation so that it solves for mass.
find the mass of the puck when the length of the string is 2.0
m, string...
Mixed Review 21.108 2 of 42> tants Part A Consider the circuit shown in the figure(Figure 1), in which three lights, each with a resistance R, are connected in series. The circuit also contains an open switch Does the current supplied by the battery increase, decrease, or remain the same when the switch is closed? O increase decrease remain the same Submit Request Answer Figure 1 of 1 ? Part B Choose the best explanation from among the following The...
At 900 °C, K = 0.0108 for the reaction CaCO3(8) F CaO(s) + CO2(g) A mixture of CaCO3, CaO, and CO2 is placed in a 10.0-L vessel at 900 °C. For the following mixtures, will the amount of CaCO3 increase, decrease, or remain the same as the system approaches equilibrium? Part A 15.0 g CaCO3, 15.0 g CaO, and 4.25g CO2 increases decreases O remains the same Submit Request Answer Part B 2.50g CaCO3, 25.0 g CaO, and 5.66 g...
Heating Oil prices increase by 46 percent and other things remain the same. As a result, there is O A. More information is needed to determine if the demand for Heating Oil increases or decreases. OB. no change in the quantity of Heating Oil demanded. O C. an increase in the demand for Heating Oil. LOD. a decrease in the quantity of Heating Oil demanded. O E. a decrease in the demand for Heating Oil.
Indicate whether the entropy of the system would increase or
decrease in each of the following reactions (some reactions are not
balanced).
Part D Entropy of the system O2(g) →O3(g) O increases O decreases O cannot be determined Submit Request Answer
Vi Lonstants During stress or trauma, a person can start to hyperventilato The person may then be instructed to breathe into a paper bag to avoid tainting CO (8) + 2H (1) Ma H5O" (sq) + HCO3 (aq) Part A How dom blood pH change during hyperventilation? O Hyperventilation will increase the CO, level in the blood, which increases the H,O and decreases the blood pH. Hyperventilation wil lower the CO, level in the blood, which decreases the H.O and...
ip a 1.2 kg block is tied to a string that is wrapped around
the rim of a pulley of radius 7.1cm. the block is released from
rest. EXPLAIN
l, LhandlerSig Hide Timer Part A Assuming the pulley is a uniform disk with a mass of 0.31 kg, find the speed of th block after it has fallen through a height of 0.50 m Express your answer using two significant figures. 2 m/s Submit Submit Request Answer Part B 1033...
LEARN MORE REMARKS As the analysis of part (a) shows, the speed of the water emerging from the hole is equal to the speed acquired by an object falling freely through the vertical distance h. This is known as Torricelll's law. QUESTION As time passes what happens to the speed of the water leaving the hole? It remains the same. It first decreases and then increases. It decreases It first increases and then decreases. It increases. PRACTICE IT Use the...
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