what is Grignard reagent ? State the action of water on methly magnesium bromide in dry ether with the help of chemical reaction.What is the action of Zn-HCL on ethyl iodide​

Answer:

public facilities should me used with geary care because lots of people travel at the same time and accidents can happen

• The basic public facilities are education, food, transportation, health, electricity, sanitation, drinking water, security, etc.

• These facilities are provided by the government to the citizens that can be free or paid for the use of these facilities.

• Facilities like transportation can provide revenue to the government, reduce pollution, and traffic.

• Education facilities would result in an increase in literacy rate, employment, and financial independence.

Answer:

Given :

Height (H) = 4.9 m

Initial horizontal velocity (u) = 4.5 m/sec

To Find :

Time taken by the stuntman to reach the ground.

Solution :

Velocity of the stuntman in y-axis = ucos∅

                                                        = 4.5×cos90

                                                        = 0

Therefore, applying the Kinematic equation for uniformly accelerated body,

s = ut + [tex]\frac{1}{2} [/tex]gt²

Where, s = distance covered; u = initial velocity; g = acceleration due to gravity; t = time taken

∴    H   = (0)t + [tex]\frac{1}{2} [/tex]gt²

⇒  4.9 =  0  +  [tex]\frac{1}{2} [/tex]×9.8×(t)²

⇒   t²  =  1

⇒   t    = √1

∴    t    = 1 s

The time taken by the stuntman to reach the ground  is 1 sec.

Therefore, option (c) is correct

Answer:

The weight of Guddy's school bag is 1 kg.

Step-by-step explanation:

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Information provided with us:

➪ The bag contain 4 books of 100 g each and 3 books of 200 g each

✰ What we have to calculate ༄

• ➪ The required total weight of bag in kg

✰So ༄

➪ The weight of 4 books of 100 g each

[tex]\implies \sf \:4 \times 100 \: g [/tex]

[tex]\implies \sf \:400 \: g [/tex]

➪ The weight of 3 books of 200 g each

[tex]\implies \sf \: 3 \times 200 \: g[/tex]

[tex]\implies \sf \:600 \: g [/tex]

✰Therefore ༄

➪Total weight of all books

[tex]\implies \sf \: 600 \: g + 400 \: g[/tex]

[tex]\implies \sf \: 1000 \: g[/tex]

✰ We know that ༄

[tex]\clubsuit \: \rm 1 \: kg \: = 1000 \: gram [/tex]

➪ So Convert 1000 gram into kg by dividing it by 1000

[tex] \rm \implies \: 1000 \div 1000[/tex]

[tex] \longrightarrow\bigstar \: \: \sf\boxed{\bold{\orange{ 1 \: kg}}}\: \: \: \bigstar\\[/tex]

✰Therefore ༄

➪ The required total weight of bag is

[tex] \longrightarrow\bigstar \: \: \sf\boxed{\bold{\pink{1\:kg }}}\: \: \: \bigstar\\[/tex]

Hogalala was early man language

Answer:

hogalala was an ancient Egypt language in that time of people communicate with others