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Does the cooling constant in newton's law of cooling change depending on the temperature of the vessel?
Wiki User
∙ 10y ago
No. By definition, the constant does not change with temperature for a given cooling system.
The constant "represents" all the particular characteristics of the cooling system, except for the time and temperature variables. If temperature influences the system characteristics, the vessel's dimensions, heat capacity, or heat transfer properties, for example, all of these effects will be completely accounted for by the single constant.
Wiki User
∙ 10y ago
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A spring stretches 11 centimeters from its equilibrium position when an object weighing 29 newtons is hung from it. What is the spring constant?
The spring constant is 263.6363... repeating Newtons per metre.
An aircraft taxiing at a constant speed is an example of what law?
Newtons first law
What is the constant force of gravity here on earth?
9.8 newtons per kilogram of mass.
Why does more mass equal more gravity?
it doesn't...gravity on earth is constant...9.8 Newtons
What is the number of newtons is the gravitational force minus the number of newtons for the drag in water?
That depends how fast the object moves. However, once it falls in the water at a constant velocity, you know that the net force - which is just what the question is after - is zero.
How would you express Newtons Law of Cooling in word form?
Newton's Law of Cooling states that the rate of change of the temperature of an object is proportional to the difference between its own temperature and the ambient temperature (i.e. the temperature of its surroundings).
Does newtons law of cooling apply to warming as well as to cooling?
Yes.
Why newtons law of colling holds good only for small difference of temperature?
Newton's Law of Cooling states that the rate of change of the temperature of an object is proportional to the difference between its own temperature and the ambient temperature (i.e. the temperature of its surroundings). As energy istransferredfrom the heat source to the heat sink, the temperatures of the source and the sink change of course. Because heat capacity is not strictly a linear function of temperature, the proportionality "constant" is in fact not constant but rather also a function of temperature.Also, for large differences of temperature where the surroundings are some kind of fluid, significant convection occurs - which again will change the cooling rate in non- linear ways. For very small differences of temperature, the convection is not significant.
What does pressure times volume equal?
As pressure is force per unit area (Newtons/m2) and volume is m3, then PV would simplify to Newtons*meters which is joules.
Why does hot water cool quicker in the first 5 minutes?
This is because of newtons law of cooling, the rate that the water cools is proportional to the difference between the temperature of the water and the temperature of the surroundings. So, as the water is hotter it cools faster, as it cools down the rate of cooling decreases.
A spring stretches 11 centimeters from its equilibrium position when an object weighing 29 newtons is hung from it. What is the spring constant?
The spring constant is 263.6363... repeating Newtons per metre.
What will the weight of a ball in water be if its weight in air is 2 newtons?
Weight in a constant gravitational field is also constant, regardless of any surroundings. The weight will be two newtons underwater as well.
What is si unit of spring constant k?
It is Newtons per metre.
What is newtons law of cooling?
AnswerNewton's law of cooling describes the rate an object will cool at when placed in surroundings of lower temperature. The law is derived by some basics of calculus, but based on one fact: the rate of cooling of an object is proportional to the difference in temperature between the surroundings and the object. It does assume some things and simplifies others (such as where the energy goes after leaving our object and the energy flow through the object between areas with different temperature - inside and outside) but is generally a very good approximation. Various forms of the original equation can be used depending on purpose, but solving is a lot simpler. dTt/dt = -ΔTt/t0, where Tt is the temperature of the object at a given time, t is time, and t0 is a time constant. This is a differential equation, and can be integrated to give us a solution: ΔTt = ΔT0 * e-rt, where r = 1/t0 is the time constant and e is the natural log base.
An aircraft taxiing at a constant speed is an example of what law?
Newtons first law
How many kilo-newtons in 195kg?
195 kg of mass weighs 0.312 kilo-newtons on the moon, 0.686 kilo-newtons on Mars, 1.911 kilo-newtons on earth, and zero newtons while coasting at constant speed in space from any one of them to either other.
What is laplaces correction to newtons formula?
laplaces corrected out that when sound is produced compression and rarefaction occur so rapidly that heat remains still in a region where it is generated so, temperature doesn't remains constant
