Calculate the kinetic energy in joules of the stone just before it hits the ground. An object of mass 5 kg is dropped from a certain height. Just before it strikes the ground, it has a kinetic energy of 1250 J. From what height wa...
Heat is the energy transferred in a process due to a difference in temperature. Heat is usually expressed using specific units like Joules or calories. These units of measurement can be interconverted using specific conversion factors.Answer and Explanation: ...
The kinetic energy of a bullet fired from a gun is 40 joules. If the mass of the bullet is 0.1 kg, calculate the initial speed of the bullet. 2.0 g bullet fired with speed of 44.5 m/s what is the kinetic energy? Is there any conversions involved?
We fed young mice (CD-1) a HFD (60% calories from fat) and treated them with 2 doses of MOTS-c (5 and 15 mg/kg/day; IP; Supplementary Fig. 3a). Mice on the higher dose of MOTS-c showed significantly superior running capacity (Fig. 2a–c) and power output (joules; ...
to be "latent" because it is essentially hidden within the molecules until the phase change occurs. It is "specific" because it is expressed in terms of energy per unit mass. The most common units of specific latent heat arejoulesper gram (J/g) and kilojoules per kilogram (kJ/kg). ...
A 1,000.0-kg car with a speed of 90.0 km/h brakes to a stop. How many calories of heat are generated by the brakes as a result? Compute the kinetic energy of a 50-g ball rolling down a hill at 0.025 km/s. Wha...
The melt endotherm, in Joules/gram, was determined using a Differential Scanning Calorimeter Model 2920 (available from TA Instruments, New Castle, Del.), using a 5° C./min ramp from 25° C. to 170° C., and integrating the area under the endotherm peak found within the temperature ...
The running economy was denoted by CoT, expressed in J.kg−1.m−1. We divided the net metabolic rate (gross – stand metabolic rate) by speed29,30, and we converted oxygen in ml to Joules relative to combustion enthalpy of substrates resulting from oxidation observed indirectly from the...
(on Earth, g = 9.81 m/s2). The density of water at 20 °C is ρ = 998 kg/m3, but generally the calculations are greatly simplified if you assume a temperature of 4 °C, where ρ = 1000 kg/m3or 1 g/cm3. So if you’re calculating the water pressure at...
If 50.0 kJ of energy is released for each gram of methane burned, how many kJ of energy will be released when 3.1 kg of the fuel undergoes combustion? How much energy in Joules is released from the complete combustion of one mole of glucose...