Anode rays differ from cathode rays in several aspects and their specific charge(charge/mass or e/m ratio) is an important feature.
The reason lies in how anode rays are produced. Anode rays are produced when a gas at low pressure is subjected to a high voltage(10,000 Volts). Under these conditions, the atoms of the gas get ionized, i.e. they lose some electrons and thus become cations(positive ions). It is a stream of these positive ions that become 'anode rays'.
However, the atomic masses of different gases are different and hence, the mass of anode ray particles varies when you use different gases in the discharge tube and hence, the charge/mass ratio also varies.
Whereas, in the case of cathode rays, the cathode ray particles are nothing but electrons. Their charge and mass is constant no matter what gas you use in the discharge tube. So, their charge/mass ratio remains constant.
(ANSWER BY RIZWAN FROM Pakistan)
Gravitational acceleration is a constant value for a celestial body, and doesn't depend on air resistance/friction. The value on Earth is constant anywhere on Earth, just like the value on Mars is constant anywhere on Mars. In practical,however, this is different. Air resistance lowers the value of gravitational acceleration.
A literal is a value that can be assigned to a constant or a variable. A constant is a named memory address in which only one value can be stored. The value must be assigned at compile time and cannot change at runtime. A variable is a named memory address in which any binary value can be stored. Variables can be initialised at compile time but can change value at runtime. Examples: int i = 42; // assign the literal value 42 to the variable i. const float pi = 3.14; // assign the literal value 3.14 to the constant pi. char c[] = "Hello world"; // assign the string literal to the character array c.
If their concentrations are multiplied with one other the product equals the water constant Kw:a kind of 'equilibrium constant' of the 'water equilibrium' reactions and vice verse: *)[H+]*[OH-] = Kw = 1.0*10-14or in negative log10 value's: (analogs of pH = -log[H+] ) pH + pOH = pKw = 14.0*) This equilibrium state is reached very quickly, so in any watery solution this is always a constant value. [H+] and [OH-] are always depending on each other: If you add acid (H+) then H+ goes up AND SO OH- goes down!H+ + OH- H2O
PV=nRT Where:- P=pressure V=volume n=number of moles R=gas constant T=temperature n,R and T all remain constant. So if volume is decreased, in order for the right hand side to remain a constant value, the value for pressure must increase.
No. The value of soil is not constant.
the absolute value for a negative or positive value is always positive
A constant is a value that does not change, an integer is a positive whole number.
Yes, the absolute value for an negative number is always positive.
No. The absolute value of a number is always positive, or zero. The way the absolute value is defined, it can never be negative.No. The absolute value of a number is always positive, or zero. The way the absolute value is defined, it can never be negative.No. The absolute value of a number is always positive, or zero. The way the absolute value is defined, it can never be negative.No. The absolute value of a number is always positive, or zero. The way the absolute value is defined, it can never be negative.
It's positive by definition. That's what the absolute value is.
positive predictive value and negative predictive value wil not be affected.
Absolute value is always positive. * * * * * The pedantic answer is "non-negative".
Yes, always.
Absolute value is always positive. Absolute value is the distance away from zero. Ex: |-4| = 4 |4| = 4
No. The absolute value of a number is the value of the number ignoring the sign - it is always positive: The absolute value of a negative number is a positive number; The absolute value of a positive number is a positive number.
No. You have it backwards . . . . . the absolute value of a negative number is always a positive number.