¿Cuál es la fuerza (FM ), aproximada que debe ejercer el bíceps cuando una pelota de 5 kg se sostiene en la mano, con el brazo horizontal?. El bíceps se conecta con el antebrazo mediante un tendón unido a 5 cm de la articulación del codo. Supón que la masa del antebrazo y la mano juntas es de 2 kg y que su centro de gravedad (CG)

What is created when solids, liquids, an gases mix with one another

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?