Answer:
Explanation:
Bone has a Young’s modulus of about
1.8 × 1010 Pa . Under compression, it can
withstand a stress of about 1.66 × 108 Pa before breaking.
Assume that a femur (thigh bone) is 0.56 m
long, and calculate the amount of compression
this bone can withstand before breakin :).
There are a number of ways you can change the volume of a gas.
Temperature: if you heat the gas it rises causing a change volume because the electrons gain more thermal energy BUT if you cool the gas down it sinks decreasing the molecules (the opposite effect)
Pressure can also change a gases volume. high pressure forces the molecules together creating a solid (along with cold temperatures)
Hope this helps!
#78
Airplane start with initial speed
now the takeoff velocity is given as
acceelration is given as
now we have
from above equation we have
#79
Airplane start with initial speed
now the takeoff velocity is given as
acceelration is given as
now we have
from above equation we have
Gravity
Explanation: ree fall is a special type of motion in which the only force acting upon an object is gravity. Objects that are said to be undergoing free fall, are not encountering a significant force of air resistance; they are falling under the sole influence of gravity.
Answer:
Explanation:
Given
mass of Projectile(m)=0.46 kg
Initial Kinetic Energy=1430 J
Maximum upward displacement from Launch point=150 m
v=78.85 m/s
and 
initial horizontal velocity
Initial vertical velocity
(c)vertical velocity at any instant=65 m/s
Since initial vertical velocity is 54.16 m/s
so 65 m/s will be acquired when projectile started falling below cliff
