Answer:
√(r³ / (MG))
Explanation:
The dimensions of each variable are:
r = [m]
G = [m³/kg/s²]
M = [kg]
Multiplying M and G eliminates kilograms:
MG = [m³/s²]
The radius cubed divided by MG eliminates meters:
r³ / (MG) = [s²]
The square root gives us seconds:
√(r³ / (MG)) = [s]
Answer:
False
Explanation:
Some places are more endowed than others.For example, some regions have lots of water (ocean and seas). While others have lots of minerals and forestlands. In addition, other have metallic rocks, wildlife, fossil fuels, and so on. Thus, we can conclude that Natural resources are not evenly distributes across the world.
[CloudBreeze]
Answer:
change in kinetic energy of the trolley is 53.91 J.
Explanation:
mass of the trolley, m = 5.0 kg
initial velocity of the trolley, u = 1.0 m/s
external force on the trolley, F = 25 N
time of force action, t = 0.75 s
The final velocity of the trolley at the end of 0.75 s is calculated as follows;
The change in kinetic energy of the trolley is calculated as;
Δ K.E = ¹/₂m(v² - u²)
Δ K.E = ¹/₂ x 5(4.75² - 1²)
Δ K.E = 53.91 J.
Therefore, change in kinetic energy of the trolley is 53.91 J.
The conservation of energy equation?
K1 + U1 = K2 + U2
Or the Kinetic energy equation?
KE = 1/2 mv²
Gravitational potential energy?
Ug = mgΔy
Elastic potential energy?
Ue = 1/2 kx²
They all end with suffix "-ide"
In short, Your Answer would be Option C
Hope this helps!