We have that the momentum p is given by the formula p=mv where m is the mass and v is the velocity. Since for A p=-14kgm/s and m=7, we have that the velocity is -14/7=-2m/s. Hence its speed is 2 m/s.
For b we have that p=15kgm/s and v=3m/s. Because m=p/v, we have m=3kg.
We also have that the momentum is conserved in this system. Hence, the net sum of the momentum of the 2 snowballs equals the momentum of the single giant ball. Hence, p(total)=p(combined)=-14+15=1kgm/s (momentum is a vector; the positive sign means that it tends to the positive direction).
<span>10 times as much. Since F=m*a, and a is constant, the only thing that affects force is the mass.
In response to the below answer, the acceleration due to gravity does not change. The force due to gravity definitely DOES change depending on the mass of the object. Since the force is what the problem asks for, the answer is 10</span>
Answer:
the answer is
B)It was the first planet located through mathematical calculations
Physics generates fundamental knowledge needed for the future technological advances that will continue to drive the economic engines of the world. Physics contributes to the technological infrastructure and provides trained personnel needed to take advantage of scientific advances and discoveries.
Explanation:
An incandescent bulb works by heating a filament in the bulb at high temperatures such that it produces it glows and produces visible light. The filament, usually a thin tungsten metal, heats up by imposing a high resistance to electric current. High resistance builds up heat in the filament causing it to glow. The bulb is filled with inert gases- like neon or halogen- to prevent oxidation of the filament.
The price of an incandescent bulb is approximately $21.
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