When the water from a sprayer hits the side of your house, it slows to a...
When the water from a sprayer hits the side of your house, it slows to a stop. If it hasn’t lost any energy since leaving the sprayer, what is the pressure of the water at the moment it stops completely? Assume atmospheric pressure equal to 100,000 Pa.
Homework Answers
Here we apply concept of energy conservation and conversion of energy from one form to another.
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When the water from a sprayer hits the side of your house, it
slows to a...
To clean the outside of your house you rent a small high-pressure water sprayer. The sprayer’s...
To clean the outside of your house you rent a small high-pressure water sprayer. The sprayer’s pump delivers slow-moving water at a pressure of 8000000.0 Pa (about 80.0 atmospheres). How fast can this water move if all of its pressure potential energy becomes kinetic energy as it flows through the nozzle of the sprayer? V=
a) Water flows out of a shower in a typical house at a rate of 20...
a) Water flows out of a shower in a typical house at a rate of 20 liters/min. If this shower is fed through a pipe that is 2.1 cm in diameter and 18 m from the high-pressure water tank, what is the difference between the pressure in the tank and atmospheric pressure? Assume the tank is at the same height as the shower and assume an ideal fluid. Pa (b) What pressure difference is needed for an energy-efficient shower head,...
1.) Your town is installing a fountain in the main square. If the water is to...
1.) Your town is installing a fountain in the main square. If the water is to rise 28.0 m (91.8 feet) above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000. Pa and g=9.81 m/s2. 2.) Your town is installing a fountain in the main square. If the water is to rise 10.0 m (32.8 feet) above the fountain, how...
19: Your town is installing a fountain in the main square. If the water is to...
19: Your town is installing a fountain in the main square. If the water is to rise 12 m (39.4 feet) above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000 Pa
QUESTION 6 When a tornado or hurricane hits, it's best to stay away from any windows....
QUESTION 6 When a tornado or hurricane hits, it's best to stay away from any windows. This is due to the drop in air pressure associated with the storms applying forces large enough to shatter the glass. To show this, assume the air pressure inside your house is 1.02 atm when a hurricane quickly drops the external air pressure down to 0.910 atm. If you're standing next to a window that has an area of 4.00 m2 What net force...
A 2L bottle is filled with water and has a 2mm diameter hole in the side...
A 2L bottle is filled with water and has a 2mm diameter hole in the side 2cm from the bottom and the top is open to the atmosphere. a) What is the velocity of the water stream coming out of the hole when the water is 10cm above the hole? Treat the water as an ideal fluid obeying Bernoulli's equation. Additionally, you may assume that the flow is slow enough that the velocity of the water at the top surface...
Decompression sickness, also known as “the bends”, occurs when the human body goes from a region...
Decompression sickness, also known as “the bends”, occurs when the human body goes from a region of high pressure to low pressure too quickly, releasing dissolved gases (mostly nitrogen) from the bloodstream as bubbles inside the body, similarly to opening a can or bottle of pop. Examples of when the bends can occur when ascending too quickly from a scuba dive or leaving a hyperbaric chamber back to atmospheric pressure. Symptoms are varied, but may include neurological damage, joint and...
True or False a. The Sun gives off electromagnetic energy only in the visible and ultraviolet...
True or False a. The Sun gives off electromagnetic energy only in the visible and ultraviolet regions. b. When given the same amount of heat a pound of aluminum will undergo a smaller temperature change than iron. c. An object that is completely submerged in a liquid will be buoyant up by a force equal to its own weight. d. Temperature and heat are two terms used to describe the same thing. e. A hollow object will always float in...
Mass of Magnesium strip Use the length of your magnesium strip and the mass per m...
Mass of Magnesium strip Use the length of your magnesium strip and the mass per m provided by your TA to calculate the mass of your magnesium strip. Make sure to convert so that your units match! Mass of magnesium strip Moles of magnesium used Convert the mass of each magnesium strip into moles using the molar mass. Moles of magnesium Moles of hydrogen produced (n) Use the mole ratio from the balanced chemical equation to convert the moles magnesium...
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be det...
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 2.99 g of FeBrz(s) are dissolved in 102.70 g of water, the temperature of the solution increases from 25.90 to 29.34 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.59 J/°C....
19: Your town is installing a fountain in the main square. If the water is to rise 12 m (39.4 feet) above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000 Pa
QUESTION 6 When a tornado or hurricane hits, it's best to stay away from any windows. This is due to the drop in air pressure associated with the storms applying forces large enough to shatter the glass. To show this, assume the air pressure inside your house is 1.02 atm when a hurricane quickly drops the external air pressure down to 0.910 atm. If you're standing next to a window that has an area of 4.00 m2 What net force...
A 2L bottle is filled with water and has a 2mm diameter hole in the side 2cm from the bottom and the top is open to the atmosphere. a) What is the velocity of the water stream coming out of the hole when the water is 10cm above the hole? Treat the water as an ideal fluid obeying Bernoulli's equation. Additionally, you may assume that the flow is slow enough that the velocity of the water at the top surface...
Mass of Magnesium strip Use the length of your magnesium strip and the mass per m provided by your TA to calculate the mass of your magnesium strip. Make sure to convert so that your units match! Mass of magnesium strip Moles of magnesium used Convert the mass of each magnesium strip into moles using the molar mass. Moles of magnesium Moles of hydrogen produced (n) Use the mole ratio from the balanced chemical equation to convert the moles magnesium...
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 2.99 g of FeBrz(s) are dissolved in 102.70 g of water, the temperature of the solution increases from 25.90 to 29.34 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.59 J/°C....
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