Some runners train with parachutes that trail behind them to provide a large drag force. These parachutes are designed to have a large drag coefficient. One model expands to a square 1.8 m on a side, with a drag coefficient of 1.4. A runner completes a 220 m run at 6.0 m/s with this chute trailing behind.

Q: Cold water enters a steam generator at 20°C and leaves as saturated vapor at the boiler pressure. At…

A: It is given that,

Q: Is the temperature of body falls through 1 degree C, what will be the change on Kelvin scale?

A: The relationship between degree celsius and Kelvin is Temperature(K)  = Temperature(°C) +273.15 K

Q: A 1-kg ice at -20°C is taken up from the freezer. How much heat in calories is needed to melt and…

A: Given that:-mass of ice= 1 kg=1000 gmInitial temperature of ice=-20°CFinal temperature of the…

Q: How much energy does it take to warm up 4.8 kg of iron from room temp (22 degrees Celsius) to 400…

A: Initial temperature, Ti = 22 oC Final temperature, Tf = 400 oC mass of iron, m = 4.8 kg  We know,…

Q: A bottle of helium gas and a bottle of argon gas contain equal numbers of atoms at the same…

A:

Q: Heat energy travels from an object with O lower heat capacity to one with a higher heat capacity. O…

A:

Q: How can you cause heat to flow from a body at lower temperature to one at higher temperature?

A: Heat can flow from a body at high temperature to a body at low temperature by any one or combination…

Q: What type of heat transfer occurs when you TOUCH a metal box with your hand and the metal box feels…

A: There are three methods by which heat can be transferred from one place to another place. 1.…

Q: What are the temperatures for freezing water on the Celsius and Fahrenheit scales? For boiling…

A: Two units of measurement of temperature are Fahrenheit and Celsius. The relation between Fahrenheit…

Q: A Carnot heat pump supplies 3900 W to keep a room at 23°C while drawing energy from the outside air…

A:

Q: How do you calculate specific heat capacity given heat flow, mass and temperature change?

A: We know, the heat flow is given by

Q: A cold soda initially at 3C gains 30kJ of heat in a room at 22C during a 20-minute period. What is…

A:

Q: How much heat energy is added to 2.00 kg of ice at -5.0 degree Celsius is changed to water at 80.0…

A:

Q: At what temperature is the value on the Celsius scale 3 times that on the Fahrenheit scale?

A: Given : Value on Celsius scale is three times that on Fahrenheit scale.

Q: When using "Newton's Law of Cooling," why are we unable to find the exact time it takes to cool an…

A:

Q: How much heat is required to melt 30kg of ice at 0 °C to water at 10 °C? The latent heat of ice to…

A: Here, the ice is at the melting point. First ice will completely converted into water at the melting…

Q: How do heat transfer and internal energy differ? In particular, which can be stored as such in a…

A: The most basic difference between heat transfer Q and internal energy U: It can be easily understood…

Q: A 400 g of ice at -7° C is placed in 2.5 kg of water at 36° C. If the specific heat of ice 2050…

A:

Q: How much heat energy is required to raise the temperature of 0.367 kg of copper from 23.0 degrees…

A: According to  the given data  m = 0.367 kg   T1 =23 ° CT2 =60 ° Cas we know that specific heat of…

Q: 10. How much heat does it take to raise the temperature of 400 grams aluminum from 100 to 500°C?…

A: Given that, m = 400 grams =400 1000=0.4 kg Specific heat of Aluminum = 900 J kg-1°C-1 Specific heat…

Q: To say that water has a high specific heat capacity is to say that water * absorbs little energy for…

A: Last option is correct.

Q: Heat transfer can cause temperature and phase changes. What else can cause these changes?

A: We have to determine that, Temperature and phase changes can result from heat transfer.What else…

Q: What methods of heat transfer move the heat produced by an electric space heater? (…

A: The heat transferred through the substance or space in three ways. Conduction, convection and…

Q: By imparting heat to a body, its temperature rises by 15 degree C. What is the corresponding rise in…

A: The temperature of body rises by 15 degree C, when imparting heat the body. Let the initial…

Q: The heat of 50MJ in joule is?

A: Heat.

Q: a car with a mass of 1700 kg and a speed of 30 m/sec brakes to stop. how many calories of heat are…

A:

Q: A small iron nail is out into a bucket of cool water. Which of the following is true? the decrease…

A: Heat flows from the high temperature to the low temperature. In this flow temperature of the body of…

Q: Calculate the amount of heat required to raise the temperature of 20 g of water vapor from 250°C to…

A: Given : mass of water vapor, m = 20 g = 20/1000 Kg = 0.02 Kg  Change in temperature , ∆T =…

Q: Which is largest unit of heat transfer- Calorie, calorie, joule?

A: