Un patinador parte de reposo hasta alcanzar una velocidad de 112km/h en 9 segundos. ¿Qué distancia habrá recorrido en la pista de patinaje? ¿Cuál fue el valor de la aceleración que tuvo mientras patinaba?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.