Particles begin to move out of their ordered arrangement due to energy. They are unable to escape because of external pressure pushing down on the liquid.
Answer:
80 N
Explanation:
For A + B: the net force is 100 N = (mA + mB)*a
a = 100/(20 + 5) = 100/25 = 4 m/s²
For A, the net force = mA * a = 20 * 4 = 80 N
<span>1.0x10^3 Joules
The kinetic energy a body has is expressed as the equation
E = 0.5 M V^2
where
E = Energy
M = Mass
V = Velocity
Since the shot was at rest, the initial energy is 0. Let's calculate the energy that the shot has while in motion
E = 0.5 * 7.2 kg * (17 m/s)^2
E = 3.6 kg * 289 m^2/s^2
E = 1040.4 kg*m^2/s^2
E = 1040.4 J
So the work performed on the shot was 1040.4 Joules. Rounding the result to 2 significant figures gives 1.0x10^3 Joules</span>
Answer:
0.619 cm
Explanation:
V = 2.17 m/s, diameter internal, D = 1.60 cm
v = 14.5 m/s, inside diameter, d = ?
According to the equation of continuity,
A V = a v
3.14 x (1.60/2)^2 x 2.17 = 3.14 x (d/2 )^2 x 14.5
5.5552 / 4 = d^2 x 3.625
d = 0.619 cm
AS Hitler once said, Static Electricity my dear watson
