A medium-sized banana provides about 105 Calories of energy. (a) Convert 105 Cal to joules. (b) Suppose that amount of energy is transformed into kinetic energy of a 1.00-kg object initially at rest. Calculate the final speed of the object. (c) If that same amount of energy is added to 3.79 kg (about 1 gal) of water at 20.0°C, what is the water’s final temperature?

Q: The height of the Washington Monument is measured to be 170 m on a day when the temperature is 35oC.…

A: The change in temperature is, ∆T=Tf-Ti∆T=-10.0°C-35.0°C∆T=-45.0°C

Q: A basketball player does 4.81 * 105J of work during her timein the game, and evaporates 0.151 kg of…

A: With the help of  the First Law of Thermodynamics, we have, ∆U=q+w where ∆U= change in internal…

Q: The human body, while at rest, produces heat energy at a rate of about 117 W. How much sweat (in g)…

A: The heat energy evaporated  per minute is,   Q=Qt˙=117 W1 minute60 s1 minute=7020 J

Q: A student wants to cool 0.25kg of diet soda (mostly water), initially at 25°C, by adding ice…

A: Given, Mass of diet soda mw = 0.25 Kg Initial temperature of first liquid = 25 C∘ Initial…

Q: A 50.0-g copper calorimeter contains 260 g of water at 20.0°C. How much steam at 100°C must be…

A: From calorimetric equation, the expression for the mass of the steam,

Q: 7. Consider a material with a mass of 1.3 kg and a specific heat capacity of 1.7 J/kg°C. Compute for…

A:

Q: Approximately how much heat must be removed from 0.5 kg of 50 °C water to freeze it into 0 °C ice?…

A: Given data: Mass of water m= 0.5 Kg The initial temperature of the water, Ti= 273+50 K=323K The…

Q: A 1.3 kg metal head of a geology hammer strikes a solid rock with a speed of 3.7 m/s. Assuming all…

A: Since all the energy of the hammer is transferred into heat energy  Q=K.Ewhere Q is the heat…

Q: What will be the final temperature is a 4 x 10⁷ J of heat is transferred to a 1kg block of aluminum…

A:

Q: How much heat transfer (in kilocalories) is required to thaw a 0.433 kg package of frozen vegetables…

A:

Q: Your 300 mL cup of coffee is too hot to drink when served at 90°C. What is the mass of an ice cube,…

A: Given data: Volume of coffee m = 300 ml So, mass of coffee = 300 g = 0.3 kg Temperature of hot…

Q: That same 0.005 kg is dropped off of the top of the Empire State building, which is about 443 meters…

A: Answer:   Given data: Mass (m) = 0.005 KgHeight (h)=443 mVelocity (v)= 5.28 m/s

Q: A car weighing 1.30×10^3 kg reduces its speed with strong braking from 130 km/h to 90.0 km/h. By how…

A: SOlution: Given that M = 1.3 x103  kg V1 = 130 km/h v2 = 90 km/h m = 6 kg C = 450 J/kgK

Q: TH Ta 4.00cm 3.00cm 2.20m A rectangular bar of gold has the dimensions as shown. (This is a very…

A: length of gold bar, l= 2.2 m cross-section area , A= (3 cm)x(4 cm)=12 cm2 = 12 x(10-2 m )2 = 12 x…

Q: Students on a spring break picnic bring a cooler that contains5.1 kg of ice at 0.0 °C. The cooler…

A: (b)The rate of heat transfer is given by, Q˙=kAT2-T1d Here, k is the thermal conductivity of the…

Q: During a bout with the flu an 80 kg man ran a fever of 39 degreees Celsius instead of normal body…

A: Mass of man,(m)=80 kg -----(1) [Given] Specific heat of the water,(c)=4190 J/kg-oC -----(2)…

Q: A 5.157 kg loose bag of soil falls from unknown height at a construction site. What is height in m…

A:

Q: It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The human body, while at rest, produces heat energy at a rate of about 116 W. How much sweat (in g)…

A: Given data The heat energy is given as Q˙=116 W. The latent heat of vaporisation is given as Lv =…

Q: It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases…

A:

Q: A food chemist is testing out a new calorimetry device that measures the caloric value of their…

A: Write the information given in the question.

Q: What is the magnitude of energy (in MJ) that must be removed to freeze 439 L of water with a density…

A:

Q: An aluminum rod is 18.7 cm long at 20°C and has a mass of 350 g. If 11,000 J of energy is added to…

A:

Q: After watching a food hack video on Facebook, you decide to make some ‘coffee ice cubes’ by freezing…

A: Given information:

Q: On a certain dry sunny day, a swimming pool’s temperature would rise by 1.50 °C if not for…

A: Given data The increase in temperature ∆T=1.50°C.   The mathematical expression for the heat…

Q: On a certain dry sunny day, a swimming pool’s temperature would rise by 1.50ºC if not for…

A:

Q: A 2.0-kg aluminum block is originally at 10 degree Celcius. If 36 kJ of energy are added to the…

A: Given Data: The mass of the aluminum block is, m = 2 kg. The initial temperature is, t = 10° C. The…

Q: The height of the Washington Monument is measured to be 170 m on a day when the temperature is 35,…

A:

Q: A submarine holds 975 kg of dry air at 29.9 °C. While docking for resupply, the hatch is opened,…

A: Given data: mass of cool air, mcool = 66 kg mass of dry air, mdry = 975 kg the temperature  of cool…

Q: A 60.0-kg runner expends 300 W of power while running a marathon. Assuming 10.0% of the energy is…

A: Determine the energy spent by the runner.

Q: A 2.0-kg aluminum block is originally at 10 degrees celcius. If 36 kJ of energy are added to the…

A: Given, Heat energy, Q=36  kJ=36000 J Initial temperature, Ti=10°C=283.15 K  Specific heat capacity,…

Q: The specific heat of a substance varies with temperature accordingto the function c = 0.20 + 0.14T +…

A: The equation for the heat energy required is given by,

Q: n Dexter’s lab, he pours 1.65kg of molten gold at 1063°C into a 1.30kg iron cauldron filled with…

A:

Q: The human body, while at rest, produces heat energy at a rate of about 103 W. How much sweat (in g)…

A: The expression for the amount of sweat is,

Q: A 2.0-kg aluminum block is originally at 10 degrees celcius. If 36 kJ of energy are added to the…

A: The heat energy used to raise the temperature of aluminum is calculated by using the formula…

Q: How many joules of heat transfer are required to thaw a 0.777-kg package of frozen vegetable juice…

A: The latent heat of fusion is, L=334 kJ/kg=334×103 J/kg The mass of the package is, m=0.777 kg

Q: Suppose same amounts of heat transfer (Q) into different masses of copper and water, causing same…

A: Heat transfer to copper and water are the same

Q: On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by…

A: Given: The mass of spaghetti is m=0.4 kg. The temperature is ∆T=45.0°C. The time is t=120 s. The…

Q: If her body retains 10 J of thermal energy for each joule of work done while lifting, how many times…

A: Data Given , Mass of the women ( mw ) = 47 kg Mass of the barbell ( mb ) = 20 kg Height ( h ) = 0.80…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.