hola por favor necesito ayuda en un trabajo de física urgente.?que llega antes de lo alto de un plano inclinado al suelo( tiene mayor velocidad) un cilindro, una esfera o un anillo, teniendo todos la misma masa?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?

You are now given an additional piece of information: it takes five complete revolutions for the turntable to speed up from 3313rpm to 45rpm. which of the following equations could you use to directly solve for the numerical value of the angular acceleration α?