A man standing on horizontal road has to hold his umbrella at 37 with vertical to keep away the rain He finds that raindrops are hitting him vertically when he starts running at 6 m/s. The speed of raindrops with respect to ground isa) 4 m/sb) 6m/sc) 10 m/sd) 3m/s​

Answer:

little messy but hope it helps

ans b

The second equation of motion can be defined as,

s = ut + (1/2) at²

where s is distance, t is time, u is initial velocity and a is the acceleration.

The velocity of projectile, V= (2î + 3j) m/s

The equation of trajectory.

Given, V= (2i + 3j) m/s

The velocity in the i direction is 2i m/s.

The distance traveled in the i direction, that is in the x-axis, acceleration is zero in the x-axis,

s = ut + (1/2) at²

x = ut + (1/2) (0)t²

x = 2t m/s

The velocity in the j direction is 3j m/s.

The distance traveled in the j direction, that is in the y-axis, acceleration is 10m/s² in the downward y-axis,

s = ut + (1/2) at²

y = (3)t - (1/2) (10)t²

y = 3t - 5t²

So, writing x in terms of y,

y = (3/2)x - (5/4)x²

4y = 6x - 5x²

Hence, the equation of the trajectory is 4y = 6x - 5x²  and the correct option is (b) 4y = 6x - 5x².

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Answer:

Hence, this electrons goes to antibonding π molecular orbital.

During the change of N2 to N2-, the added electron goes to (π*2px) molecular orbital.

In N2- we have 15 electrons and there are 10 bonding electrons and 5 anti-bonding electrons. In N2- we have one unpaired electron so it also shows some magnetic moment.

The bond order of N2- is 2.5 while the bond order for N2 is 3. As bond order is inversely proportional to bond strength the bonds formed by N2- will be weaker as compared to N2. the bond length of N2- will be more.

Answer:

Eight drops of mercury of equal radii possessing equal charges combine to from a big drop. Then the capacitance of bigger drop compared to each individual small drop is. As capacity is r, hence capacity becomes 2 times.

Explanation:

I hope it will work

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• The cloverleaf model of tRNA is a model that depicts the molecular structure of tRNA.
• The model revealed that the chain of a specific tRNA binds to a specific amino acid through its acceptor stem and two of the arms have a loop, D-loop and Tψc-loop with a ribosome recognition site.
• Regions of self-complementarity within tRNA creates a cloverleaf-shaped structure.
• A specific tRNA binds to a specific amino acid through its acceptor stem.