2. A body is thrown vertically upward with a speed of 100 m/s. The time taken to be

the earth is

a. 10 sec

b. 20 sec

c. 15 sec

d. 5 sec

Which is a characteristic of centripetal acceleration? It is directed outward from the center of a circle. It is directed inward, toward the center of a circle. It results in an object moving faster. It results in an object moving slower.

Which example shows electrical energy being transformed into heat energy?

Um automóvel se desloca em linha reta por um trecho de uma rodovia, com velocidade constante e seu movimento obedece a seguinte equação horária S = 20 + 15t, sendo o espaço medido em metros e o tempo em segundos (no SI).

What can be absorbed or released as the result of a chemical reaction?

A stone is tied to a string whirled in a circle at the same constant speed in two different ways. first, the circle is horizontal and the string is nearly parallel to the ground. next, the circle is vertical.

Carole is very tired and makes coffee. why would newton say that she must use her hand to put up the cup

Rapid gas exchange can be accomplished more easily in air than in water because A. the O2 content of water is higher than that of air B. O2 diffuses more rapidly in water than air C. water is more dense and viscous D.

Which electron transition between the energy levels of hydrogen causes the emission of a photon of visible light?

According to a college survey, 22% of all students work full time. find the mean for the number of 3) students who work full time in samples of size 16.

How Much Potential Energy Does A 50kg block of Ice a Height of 4m Have?