Ajuggler throws a bowling pin straight up in the air. after the pin leaves his hand and while it is in the air, which statement is true? (a) the velocity of the pin is always in the same direction as its acceleration. (b) the velocity of the pin is never in the same direction as its acceleration. (c) the acceleration of the pin is zero. (d) the velocity of the pin is opposite its acceleration on the way up. (e) the velocity of the pin is in the same direction as its acceleration on the way up.

The velocity of the pin is opposite its acceleration on the way up.

Explanation:

A juggler throws a bowling pin straight up in the air. After the pin leaves his hand and while it is in the air, the velocity of the pin is opposite its acceleration on the way up.

When an object is thrown straight up in the air, the acceleration due to gravity is acting in the opposite direction. As a result, the velocity of the pin is acting in the opposite direction on the way up.

Hence, the correct option is (d).

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.