Una persona empuja un carrito de compras de masa 20kg aplico una fuerza de 30 N los ejes de las ruedas no están bien engrasados y en coche cuenca algunas ruedas no giran produciendose una fuerza de rozamiento del suelo sobre las ruedas F2=30 N, Calcular el trabajo realizado por cada fuerza y el trabajo neto realizado por ambas fuerzas en un desplazamiento se x=8,0m

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft