1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Burka [1]
2 years ago
15

Help me please urgently needed​

Chemistry
1 answer:
Advocard [28]2 years ago
4 0

Answer:

(i)

(ii) 10s

Explanation:

u=144km/h=(144× 5/18) m/s=40m/s

v=0

s=200m

By third equation of motion,     v ²= u²+ 2as

0=(40)²+ 2a(200)

−1600=400a

a=−4m/s²

Now, by first equation of motion,    v=u+at

0=40+(−4)(t)

−40=−4t

t=10sec

You might be interested in
Which of the following is not one of the main five types of reactions?
sp2606 [1]

b. reduction-oxidation

3 0
3 years ago
Q.1 What is one joule work ? ​
Irina-Kira [14]

Answer:

See below.

Explanation:

It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's.

Best Regards!

8 0
3 years ago
Read 2 more answers
A tapping vessel opens in a tank like side. the tank has an outel for water on the upper side & a water inlet on the lower s
nadya68 [22]

Answer:

1. The above description is of hydraulic gravitation separation method.

5 0
3 years ago
How many σ bonds are there in each molecule ethane ethylene acetylene?
aalyn [17]
The  sigma  bonds  are  formed  when  orbitals  overlap  side  by  side  and  is  related  to  covalent  bond  In  ethylene  the number  of  sigma   bond  are  5.
Reason,  carbon  has  four  carbon -hydrogen  bond  which  form  four  sigma  bond.  The  other    sigma  bond  is  between  carbon=carbon  bond  thus  ethylene  has  5  sigma  bond
3 0
3 years ago
Read 2 more answers
The equilibrium-constant expression depends on the of the reaction. (A) stoichiometry (B) mechanism (C) stoichiometry and mechan
myrzilka [38]

Answer:

(A) stoichiometry

Explanation:

For example, Consider the reaction of the type ,

aA + bB-----> cC +dD

where b, a, d, and c are the stoichiometric coefficients for the balanced equation .

The equilibrium constant expression is denoted by K ,

equilibrium constant is the product's concentration each raised to the power of its corresponding stoichiometries , divided by reactant's concentration each raised to the power of its corresponding stoichiometries .

8 0
4 years ago
Other questions:
  • Select the chemical equation that most likely represents the reaction between the vinegar and the dolomite.
    10·2 answers
  • How much heat is released when 6.00 g of methane is combusted using the reaction below? CH4 + 2O2 ? CO2 + 2H2O ?Hrxn = -890. KJ
    15·2 answers
  • The average density of human blood is 1.06 g/mL. What is the mass of blood in an adult with a blood volume of 5.5L? Express your
    13·1 answer
  • How many paths of energy does a food chain follow?
    14·2 answers
  • How does the mass of the electron compare to the masses of the proton and neutron?
    13·1 answer
  • Compare and contrast how wind glaciers abrade rock?
    5·1 answer
  • Is NaI a ionic or covalent
    8·1 answer
  • Does anyone know the answer!??​
    13·1 answer
  • How is area and volume of cuboids calculated?​
    12·1 answer
  • According to molecular orbital theory, the regions of the wave function with the highest probability of finding electrons are ar
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!