How long would it take for a car to travel 200km if it has an aventage speed of 55 km/ hr

3.64 hours

Explanation:

Formula of Average speed :

Given : Distance = 200km    ; Average speed = 55 km/ hr

To find : Time

Substitute values for distance and average speed in the above formula , we get

Hence, it would take 3.64 hours for a car to travel 200km .

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.