Answer:
C - 11.76 N (Newtons)
Explanation:
2 steps are needed,
First find the Force being applied by the box on the surface.
F = M(a) [Force equals: mass X Acceleration (of gravity)]
You get 39.2 N of Force.
Plug in the remaining values into the equation for Frictional Force
F(f) = μ(F) [Coefficient of Friction X Force applied by the Box]
So
F(f) = 0.3(39.2) = 11.76 N (of Frictional Force)
Answer:
t = S / V = 3.8E8 / 3E8 = 1.3 sec
It takes over 1 second for a radio signal to travel between the earth and the moon.
Answer:
Explanation:
To determine the <u>muzzle velocity of the gun</u>, we must know how long does it take the ball to <u><em>strikes the ground </em></u>
Since the ground is at y=0 and
Solving for t
Now, to determine the muzzle velocity we need to find its acceleration first
(1)
(2)
If we analyze the final velocity is 0. From (2) we have that
(3)
Replacing (3) in (1)
Solving (3)
BLANK 1: A) Not balanced
BLANK 2: B) Sodium
BLANK 3: B) Not Equal
The pressure is 5000 Pa
Explanation:
The pressure exerted by a force on a surface is given by the equation:
where
p is the pressure (measured in Pascal, Pa)
F is the magnitude of the force
A is the area of the surface on which the force is exerted
In this problem, we have:
F = 2 N
Substituting into the equation, we find the pressure:
Learn more about pressure:
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