`xtimes x times x times y times y times y times z times z`=

Write the following in the exponential form: (a) b times b times b times...10 times. (b) y times y times...15 times (c) 9times a times a times a times b times b times b times b times b (d)8times x times x times y times y times y

If amplitude of Wave y_1 is two times that of the wave y_2 and frequency of y_1 is 2 times the frequency of y_2 , then the ratio of transfer of energy in the wave y_1 and y_2 is

Write the following statements in the form of equations. 3 less than 5 times a number y is equal to the sum of 8 and 3 times the number y.

Let x,y,z be the vector, such that |x|=|y|=|z| =sqrt(2) and x,y,z make angles of 60^(@) with each other. If x times (y times z) = a . The value of y is:

Under the identical conditions of temperature, the density of a gas X is two times to that of gas Y while molecular mass of gas Y is three times that of X. Calculate the ratio of pressure of X and Y.

Generate algebraic expressions for the following: The number obtained when m times the difference of x and y is subtracted from n times the sum of x and y.

At STP the density of a gas X is three times that of gas Y while molecule mass of gas Y is twice that of X. The ratio of pressures of X and Y will be:

At STP the density of a gas X is three times that of gas Y while molecule mass of gas Y is twice that of X. The ratio of pressures of X and Y will be:

Nuclei X and Y convert into a stable nucleus Z. At t=0 , the number of nuclei of X is 8 times that of Y. Half life of X is 1 hour and half life of y=2 hour. Find the time (in hour) at which rate of disintegration of X and Y are equal.