Asolution contains 90 ml of methanol, 18 ml of propanol, and 2 ml of diethyl ether. which is the solvent in this solution? methanol propanol diethyl ether water

methanol

Explanation: Solution is a homogeneous mixture of two or more components called as solute and solvent.

Solute is the component which is present in smaller proportion and solvent is the component which is present in larger proportion.

The given solution is  ternary solution as it contains three components where 2 ml of diethyl ether and 18 ml of propanol acts as solutes and 90 ml of methanol acts as solvent.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me