Answer:2.53°
Explanation:The ball is undergoing a projectile motion that is why it has an angle
Range = (U^2 sin2a)/g
U= velocity of the ball=100ft/sec
Range of the ball(i.e horizontal distance the ball crossed)= 30yard=90ft
a=angle the ball is projected
g= acceleration due to gravity=9.8m/s^2
90=(100^2×sin2a)/9.8
90×9.8=10000×sin2a
882/10000=sin2a
0.0882=sin2a
Sin^-1 0.0882=2a
5.06=2a
a=5.06/2
a=2.53
Answer:
Modulus of elasticity is dependent on the elemental constitution of 1080 steel and various heat treatment don't affect this elemental composition but only affects the mechanical properties(like strength , hardness, ductility, malleability) of the 1080 steel that are affected by plastic deformation of the 1080 steel
Explanation:
Generally the underlying physical reason why when we conduct various heat treatments on 1018 steel we expect the modulus of elasticity to stay about the same for every heat treatment is
Modulus of elasticity is dependent on the elemental constitution of 1080 steel and various heat treatment don't affect this elemental composition but only affects the mechanical properties(like strength , hardness, ductility, malleability) of the 1080 steel that are affected by plastic deformation of the 1080 steel
Answer:
The maximum allowable Height of the slot is 11.685mm
Explanation:
The explanation is attached. The approach used is Bernoulli's equation
The option that is an exception about the properties of magnesium is the option;
<u>Is typically made from </u><u>stampings</u>
The reason why the option is an exception is given as follows:
- Magnesium is a nonferrous metal as it is usually combined with manganese, zinc and aluminum.
- Within the group of structural metals, magnesium is the lightest, having a high strength-to-weight ratio.
- Magnesium posses good dampening characteristics, and is capable of reducing vibration of mechanical parts.
<em />
<em>However</em>
- Magnesium parts used for vehicle construction are die cast, and not made from stampings because magnesium is more difficult to stamp compared to aluminum.
Therefore, the correct option for the statement that is an exception from the true statements about magnesium is magnesium; <u>is typically made from stampings</u>
Learn more about the properties of magnesium here:
brainly.com/question/21011563
brainly.com/question/20032326
brainly.com/question/5106448
