1. Is it possible for a 100-lb woman to exert a greater pressure on the ground...
1. Is it possible for a 100-lb woman to exert a greater pressure on the ground than a 200-lb man?
Homework Answers
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1. Is it
possible for a 100-lb woman to exert a greater pressure on the
ground...
How much more pressure does a 250 lb person exert on the ground than a 120...
How much more pressure does a 250 lb person exert on the ground than a 120 lb person if they are both standing on one foot with area 16 in2? Report your answer with two significant figures.
1. At the bottom of the pool the water pressure is greater than the pressure at...
1. At the bottom of the pool the water pressure is greater than the pressure at the top of the pool (True,False) 2. The atmospheric pressure at the sea level is greater than the atmospheric pressure at the mountain top (True,False) 3. A cake of soap placed in a bathtub of water sinks. The buoyant force on the soap is less than the weight of the soap (True,False)
The water in a pressure cooker boils at a temperature greater than 100°C because it is...
The water in a pressure cooker boils at a temperature greater than 100°C because it is under pressure. At this higher temperature, the chemical reactions associated with the cooking of food take place at a greater rate. (a) Some food cooks fully in 7.00 min in a pressure cooker at 120.0°C and in 70.0 minutes in an open pot at 100.0°C. Calculate the average activation energy for the reactions associated with the cooking of this food. kJ mol-1 (b) How...
The water in a pressure cooker boils at a temperature greater than 100°C because it is...
The water in a pressure cooker boils at a temperature greater than 100°C because it is under pressure. At this higher temperature, the chemical reactions associated with the cooking of food take place at a greater rate. (a) Some food cooks fully in 8.00 min in a pressure cooker at 111.0°C and in 24.0 minutes in an open pot at 100.0°C. Calculate the average activation energy for the reactions associated with the cooking of this food. ____kJ mol-1 (b) How...
The water in a pressure cooker boils at a temperature greater than 100°C because it is...
The water in a pressure cooker boils at a temperature greater than 100°C because it is under pressure. At this higher temperature, the chemical reactions associated with the cooking of food take place at a greater rate. (a) Some food cooks fully in 5.00 min in a pressure cooker at 114.0°C and in 25.0 minutes in an open pot at 100.0°C. Calculate the average activation energy for the reactions associated with the cooking of this food. _______ kJ mol-1 (b)...
Topic 5-3 Problem 8.86 6 of 6 The 85.0-lb boy at A is suspended from the...
Topic 5-3 Problem 8.86 6 of 6 The 85.0-lb boy at A is suspended from the cable that passes over the quarter circular cliff rock. Determine if it is possible for the 175-lb woman to hoist him up. The coefficient of static friction between the cable and the rock is u 0.2, and between the shoes of the woman and the grounds 0.8. (Figure 1) Previous Answers Correct Part D What smallest force must she exert on the horizontal cable?...
A closed container contains 1 lb of Refrigerant 22 at temperature 100°F and pressure of 65...
A closed container contains 1 lb of Refrigerant 22 at temperature 100°F and pressure of 65 lbf/in. The refrigerant is heated up until it reaches the temperature of 120°F. 1) Determine the pressure [lbf/in2] in the final state. (100 points) 2) Show the process schematically in a T-v and a p-v diagram with all the necessary features. (50 points) 3) Calculate the heat transfer [Btu] during the process. (150 points) 4 ) Calculate the work [Btu] if the refrigerant at...
1. A woman with white skin has intermediate parents. If this woman marries a man with light skin,...
1. A woman with white skin has intermediate parents. If this woman marries a man with light skin, what is the darkest skin color possible for their children? The lightest? 2. A woman is color blind. What are the chances that her sons will be color-blind? If she married a man with normal vision, what are the chances that her daughters will be color blind?
The acceleration of the block will be greater than the acceleration of the woman and the...
The acceleration of the block will be greater than the acceleration of the woman and the force on the block would be the same as the force on the woman Question 3 1 pts An 7 kg block experiences a net force in the opposite direction of its velocity for 3 seconds. Its velocity decreases by 14 m/s. What is the magnitude of the force? (your answer should be up to two decimal points)
Professor Goetz took a heavy marine 100 foot, 0.75 lb per foot rope and through it through his office window. One end of the rope touches the ground. Professor Goetz missed his lunch and can only exe...
Professor Goetz took a heavy marine 100 foot, 0.75 lb per foot rope and through it through his office window. One end of the rope touches the ground. Professor Goetz missed his lunch and can only exert 300kcal (the equivalent of a healthy sandwich). He realized he does not know if he has enough energy to lift the rope back into his office. a) How much energy in kcalories is needed to lift the rope half way from the ground....
The water in a pressure cooker boils at a temperature greater than 100°C because it is under pressure. At this higher temperature, the chemical reactions associated with the cooking of food take place at a greater rate. (a) Some food cooks fully in 7.00 min in a pressure cooker at 120.0°C and in 70.0 minutes in an open pot at 100.0°C. Calculate the average activation energy for the reactions associated with the cooking of this food. kJ mol-1 (b) How...
Topic 5-3 Problem 8.86 6 of 6 The 85.0-lb boy at A is suspended from the cable that passes over the quarter circular cliff rock. Determine if it is possible for the 175-lb woman to hoist him up. The coefficient of static friction between the cable and the rock is u 0.2, and between the shoes of the woman and the grounds 0.8. (Figure 1) Previous Answers Correct Part D What smallest force must she exert on the horizontal cable?...
A closed container contains 1 lb of Refrigerant 22 at temperature 100°F and pressure of 65 lbf/in. The refrigerant is heated up until it reaches the temperature of 120°F. 1) Determine the pressure [lbf/in2] in the final state. (100 points) 2) Show the process schematically in a T-v and a p-v diagram with all the necessary features. (50 points) 3) Calculate the heat transfer [Btu] during the process. (150 points) 4 ) Calculate the work [Btu] if the refrigerant at...
The acceleration of the block will be greater than the acceleration of the woman and the force on the block would be the same as the force on the woman Question 3 1 pts An 7 kg block experiences a net force in the opposite direction of its velocity for 3 seconds. Its velocity decreases by 14 m/s. What is the magnitude of the force? (your answer should be up to two decimal points)
Professor Goetz took a heavy marine 100 foot, 0.75 lb per foot rope and through it through his office window. One end of the rope touches the ground. Professor Goetz missed his lunch and can only exert 300kcal (the equivalent of a healthy sandwich). He realized he does not know if he has enough energy to lift the rope back into his office. a) How much energy in kcalories is needed to lift the rope half way from the ground....
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