if the air in the room had been warmer, would the level of the water have been higher or lower when the resonance occurred? justify your answer.
Speed of sound in air depends on temperature.
It increases with increasing temperature.
Speed of sound V =2n (l2 - ll1). Frequency does not change with temperature. Hence length of air column increases with temperature.
If air is warmer then length of air column increases.
if the air in the room had been warmer, would the level of the water have...
Physics Help? We all have had the experience that a room full of people always feels warmer than when the room is empty... 2.) We all have had the experience that a room full of people always feels warmer than when the room is empty. Ten people are in a 4.0 m x 6.0 m x 3.0 m room at 20° C. If each person gives off heat at a rate of about 100 W and there is no heat...
10. When snow falls through a warmer air mass, rain forms. When the sun comes out the wet pavement dries. Describe all of the phase changes that have occurred. 10. When snow falls through a warmer air mass, rain forms. When the sun comes out the wet pavement dries. Describe all of the phase changes that have occurred.
Air conditioners not only cool air, but dry it as well. Suppose that a room in a home measures 5.0m×8.0m×2.6m. If the outdoor temperature is 30 ∘C and the vapor pressure of water in the air is 90 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? The vapor pressure for water at 30...
A room is to be air conditioned in the summer using water-cooled coils. The return air to air cooling unit has a sensible heat load of 100,000 Btu/hr and a latent heat load of 40,000 Btu/hr. The total heat load of the air going to the outside is 80,000 Btu/hr. Water enters the cooling coil at 40 deg.F and exits at 52 deg.F. From the total heat load on the room, use the result for water flow found above in...
What would have been an appropriate conclusion if Gorbsky et al had seen the photobleached mark to move towards the centrosome? Question 57 Not yet answered Points out of 2.50 P Flag question Select one: a. Kinesin moves the chromosomes towards the poles of the spindle o b. Microtubules shorten at the chromosome end during anaphase O c. Dyenin moves the chromosomes towards the poles of the spindle d. Microtubules shorten at the centrosome end during anaphase o e. None...
CHEM 1211 Lab Manual 5th Edition 158 Post-Lab Questions 1. If the container of the reaction of an acid with a base feels warmer, does that mean that reactants release or absorb heat as they form products? Is the heat energy level of products lower or higher than the heat energy level of reactants? Justify your answer. 2. If the heat energy level of products is lower than the heat energy level of reactants, does that mean that the products...
56. Fresh air is introduced into a room at such a rate that the air in the room is changed every 5 minutes. The room is 30 by 30 by 10 ft and the air in the room is at 70 °F with a percentage humidity of 60. Outside air at a temperature of 60 °F is used as air supply. The outside air is heated to the room temperature by a heat exchanger. How many BtU per hour must...
The water level on the side of the manometer which is open to the air is 10.7 cm higher than on the side connected to the balloon (a) Find the gauge pressure in the balloon, (b) and the absolute pressure. Open to atmosphere Meter stick Otheexpertta.com
A student leaving campus for spring break wants to make sure the air in her dorm room has a high water vapor pressure so that her plants are comfortable. The dorm room measures 3.38 m x 4.61 m x 3.47 m and the student places a pan containing 1.59 L of water in the room. Assume that the room is airtight, that there is no water vapor in the air when she closes the door, and that the temperature remains...
Problem 17.39 A 3700 mL flask is initially open in a room containing air at 1.00 atm and 20 ∘C. The flask is then closed and immersed in boiling water. When the air in the flask has reached thermodynamic equilibrium, the flask is opened and air is allowed to escape. The flask is then closed and cooled back to 20 ∘C. Part A: Find the maximum pressure reached in the flask. Express your answer with the appropriate units. p_max =...