Three forces are exerted on a 3.00-kg block initially at rest on a horizontal slippery surface xy: a 100-n force directed along the positive x axis, a 50.0-n force that makes an angle of 30.0∘ with the positive x axis, and a 138-n force that makes an angle of 190∘ with the positive x axis.

what is the y component of the vector sum of the forces exerted on the block?

what is the work done on the block in 10.0 s?

Bob camina 200 m sur, luego trota 400 m suroeste, luego camina 200 m en una dirección 30? norte del este. a. dibuje una gráfica de los movimientos de bob. use una regla y transportador. b. use método gráfico y analíitico para hallar el desplazamiento total que bob recorrió. (magnitud y dirección) c. compare los resultados obtenidos por el método gráfico y analítico. (por ciento de diferencia).

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?