The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down,The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.
Answer:
weave lanes
Explanation:
Road engineers have to be especially creative when they must design an infrastructure that allows several major roads to cross, with the aim of improving traffic flow making optimal use of space.
The partial cloverleaf: With a very popular design usually widely used in places where interstate highways meet state and / or local roads. Usually you include interlaced lines (or weaves lanes) that allow adequate traffic circulation both to enter and exit to the main road.
Answer:
Δ S = -50 J
Explanation:
given,
Temperature, T = 500 K
Heat dissipates, Q = 25.0 kJ
Q = 25000 J
change in entropy, ΔS = ?
using equation of entropy
Δ S = -50 J
negative sign is used because heat is lost in the surrounding.
Hence, Change in entropy is equal to -50 J
Answer:
<em>Physical change: </em>(a) grinding of glass, (c) burning of candle, (d) sanding wood
<em>Chemical change: </em>(b) rusting of iron.
Explanation:
Physical Change: This is the type of change a matter undergoes, it is easily reversible and no new substance is formed.
Chemical Change: Is one which is not easily reversible and a new substance is formed.
From the question above, the following changes can be classified into physical or chemical change
<em>Physical change: </em>(a) grinding of glass, (c) burning of candle, (d) sanding wood
<em>Chemical change: </em>(b) rusting of iron
