Answer:
d. Every second, the truck’s velocity increases by 3 km/h to the south.
Explanation:
Acelleration can be defined as change of velocity over change of time.
That's why if we say: "A truck accelerates 3 km/h/s south."
We are saying that the acceleration of the truck variate 3Km/h wich is velocity of the truck, and it variates every second and also its direction is south.
The thermodynamic property that describes the relationship between equilibrium and temperature is Thermodynamic equilibrium
Thermodynamics is a science that focuses on explaining chemically and physically phenomenons related to:
In thermodynamics, the thermodynamic equilibrium occurs if the temperature or heat is in balance, and therefore it will not change in regular conditions. For example:
- If a liquid has the same temperature as its surroundings, the temperature is likely to remain stable
- The temperature of a liquid or solid does not change unless there are specific conditions
- According to this, thermodynamic equilibrium describes the relation of equilibrium to temperature
Learn more in: brainly.com/question/22447172
Answer:
(a) 8.4375 s
(b) 1409.06 ft
(c) 40.55 seconds
Explanation:
v’(t)=a(t)=60t therefore
For first three seconds
Since motion is vertical and we take upward direction as positive, acceleration is negative hence
a(t)=-32 and
but since at t=0 then v=270 hence c=270
-32.2t+270=0 hence
t=270/32=8.4375 s
(b)
and since s(0)=270 then
(c)
v(15)=-32(14)+270=-178 ft/s
Average speed in the next 5 seconds becomes
The altitude is 914-490=424 ft
Time when rocket hits ground
Total time=3+14+23.6=40.55 seconds
Distance between Earth and Moon = 384,400 Km
We know, 1 Km = 3280.84 Feet
So, 384,400 Km = 384,400 * 3280.84 = 1261154896
In short, Your Answer would be: 1261154896 Feet
Hope this helps!