All of the elements are made up of atoms. Every atom is made up of 3 subatomic particles known as the electrons, protons and neutrons. Electrons are negatively charged particles while the protons are the positively-charged particles. Lastly, neutrons do not have any charge.
Answer:
The least amount of time in which the fisherman can raise the fish to the dock without losing it is t= 2 seconds.
Explanation:
m= 5 kg
h= 2m
Fmax= 54 N
g= 9.8 m/s²
W= m * g
W= 49 N
F= Fmax - W
F= 5 N
F=m*a
a= F/m
a= 1 m/s²
h= a * t²/2
t= √(2*h/a)
t= 2 seconds
Answer:
Explanation:
The torque exerted is given by
where
is the force applied
d = 3.10 cm = 0.031 m is the length of the lever arm
Substituting,
The equivalent of Newton's second law for rotational motion is:
where
is the net torque
I is the moment of inertia
is the angular acceleration
Solving the equation for I, we find
Answer: A. vector
Explanation:
Movement is the change of position of a body at a certain time. The body that experiences this change of position is called mobile.
In this sense, the <u>displacement</u> is the distance in a straight line between the initial and final position of this mobile, which differentiates it from <u>the trajectory, </u> which is the <u>path followed by the body in its movement and a scalar magnitude.</u>
Hence, the displacement is a vector.
