Volume of a block can be found by: length × width × height. So:
3.5cm × 2.8cm × 1.6cm = 15.68cm^3
Hey user!
your answer is here..
correct option is A. steel
we know that sounds travel faster in solid as compared to gas and liquids. in gas the molecules are very loosely packed and there is lot of space between so it takes more time to pass sound from each other. and in liquid, the molecules are closer as compared to gas hence it will be little faster and in solid, the molecules are very tightly packed so it will be the fastest. and among these options, steel is the only solid so the speed of sound in steel will be the fastest.
and note that the closer the molecules are to each other ( tightly packed ) makes the bond also tighter and less time to pass sound.
cheers!!
<span>Moon tides or lunar tides are caused
by the pull of gravity between the moon and earth. The moon will exert a
gravitational pull on earth and the earth also pulls the moon towards itself.
One of the results is that the moon is near the earth and the other one, the
oceans tide. Even though the earth can hold any object within ts proximity, the
ocean is partly attracted due to its liquid property. At night, the ocean tends
to be attracted to the moon by creating a bulge and assigning it as ‘high tide’.
This is due to the strong gravitational pull of th moon to the earth. The answer
is letter D.</span>
The correct answer is
<span>
B. As speed of a fluid increases, the pressure within decreases.
Using formulas, Bernoulli's principle can be written as
</span>
where p is the pressure of the fluid,
its density, v its speed, and h its elevation above a reference level.
Assuming h does not change, we can see that if the speed v increases, the pressure p must decrease in order to keep constant the sum of the three terms.
Answer:
Explanation:
Average speed= Total distance/ Total time
Initial reading= 2200
final reading= 3800
total distance= Final reading -initial reading = 3800-2200 = 1600 km
total time= 20 hrs
Average speed= 1600/20
= 80 km/hr
CONVERTING km/hr TO m/s
To convert km/hr to m/s just multiply
Recall that,
1000m = 1 km
60 secs = 1 min
60 mins = 1 hr
( 80 × 1000 ) meters / ( 60×60 ) secs
80000m / 3600s
= 22.22m/s
