Answer: 39.2m/s
Explanation:
Due to the free falling body, the acceleration of the ball is 9.8 m/s^2, and its initial velocity is 0 m/s.
V(t) = g*t
The change of velocity from t=1 to t=5:
Delta V = 9.8*(5-1) = 39.2 m/s
See attachment file below.
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A peach, because it takes a longer process for the peach tree to form creating the peach! I hope this helps!!!
Answer: Two glass marbles bounce off each other.
Explanation:Elastic collisions are collisions in which both momentum and kinetic energy are conserved. The total system kinetic energy before the collision equals the total system kinetic energy after the collision. If total kinetic energy is not conserved, then the collision is referred to as an inelastic collision.
An elastic collision occurs when the two objects "bounce" apart when they collide. Two rubber balls are a good example. In an elastic collision, both momentum and kinetic energy are conserved. Almost no energy is lost to sound, heat, or deformation.
Answer:
3.39
Explanation:
Given that
Volume, v = 3.92*10^3 cm³ we convert the volume from cm³ to m³ and we have 0.00392
Pressure, P = 1.25*10^5 Pa
Average Kinetic Energy, K.E = 3.6*10^-22 J
We use the gas law formula,
PV = nRT
Making n subject of the formula, we have
n = PV/RT
Solving for n, we have
n = (1.25*10^5 Pa * 0.00392 m³) / 8.314 * T
n = 4.9*10^8 / 8.314 * T
n = 490 / 8.314T
n = 58.94/T
Note that average kinetic energy is given as
K.E(avg) = 3/2K.T,
3/2 K.T = 3.6*10^-22 J
where K = 1.38*10^-23
T = (3.6*10^-22 J * 2) / (3 * 1.38*10^-23)
T = 17.39
Substitute for T, we have
n = 58.94 / 17.39
n = 3.39