The answer is D. <span>iron, cobalt, and nickel</span>
Explanation:
1. The structures should be made with good quality steel and concrete so that they can bear load and deformation.
2. Buildings should be made laterally strong so that they can overcome dominant lateral forces.
3. In High seismic activity areas devices such as energy absorbers should be used. Base isolation must necessarily be done.
4. Use of hybrid Fiber Reinforced Concrete to increase the toughness of a structure in a Moment Resisting Frame. Moment resisting frames are frames that resist moment of any devices.
» Mass ( m ) of the body = 250 g
» final velocity of the body = 4 m/s
» The height of the Building= ??
★ <u>Height of the </u><u>building </u><u>by the principal of conservatio</u>n;
henceforth , The height of the Building is <u>0.8 m or 80 cm</u> ..!!!
Answer:
a= g = - 9.81 m/s2.
The following equations will be helpful:
a = (vf - vo)/t d = vot + 1/2 at2 vf2 = vo2 + 2ad
When you substitute the specific acceleration due to gravity (g), the equations are as follows:
g = (vf - vo)/t d = vot + 1/2 gt2 vf2 = vo2 + 2gd
If the object is dropped from rest, the initial velocity ("vi") is zero. This further simplifies the equations to these:
g = vf /t d = 1/2 gt2 vf2 = 2gd
The sign convention that we will use for direction is this: "down" is the negative direction. If you are given a velocity such as -5.0 m/s, we will assume that the direction of the velocity vector is down. Also if you are told that an object falls with a velocity of 5.0 m/s, you would substitute -5.0 m/s in your equations. The sign convention would also apply to the acceleration due to gravity as shown above. The direction of the acceleration vector is down (-9.81 m/s2) because the gravitational force causing the acceleration is directed downward.
hope this info helps you out!
Answer:
Explanation:
Given
number is given as 
and 
g=acceleration due to gravity
calculating for 
