answer:He was determined to succeed, even though there were numerous obstacles in his way.

answer:One possible name for a startup focused on shared grocery shopping could be "Co-Cart". This name combines the concept of cooperation with the practical action of grocery shopping, and has a catchy, easy-to-remember sound.

answer:- Java is a high-level language - C++ is a high-level language - Assembly is a low-level language.

answer:A vector quantity is a physical quantity that has both magnitude (size or numerical value) and direction. This is in contrast to a scalar quantity, which has only magnitude and no direction. For example, velocity is a vector quantity as it has both speed (the magnitude) and direction of motion. On the other hand, mass or temperature is a scalar quantity, as it only has magnitude and no direction associated with it. In mathematical terms, vectors are often represented by arrows, with the length of the arrow denoting the magnitude of the vector, and the direction of the arrowhead indicating the direction. A scalar, on the other hand, is usually represented by a single numerical value or variable. In terms of their calculations, vector quantities can only be combined with other vectors following certain rules, such as addition or subtraction. If two vectors of the same type, for example, two forces, are acting in the same direction, they can be added together to give a new vector in that direction with magnitude equal to the sum of their magnitudes. Scalar quantities can be added, subtracted or multiplied with other scalars following the standard rules of algebra.