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erastova [34]
3 years ago
12

1. To calulate the molarity of a solution, you need to know the moles of the solute and the?

Physics
1 answer:
Fofino [41]3 years ago
3 0
1. Volume of the solution (B)

2. Celery (D)

3. Hydroxide ions in solution (A)
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I NEED HELP, PLEASE.
Zinaida [17]
Hello,


I'd be glad to help.

Momentum  =  (mass) times (speed)

                                           =  (75 kg)  x  (18 m/s)

                                           =         1,350 kg-m/s  .    

Hope this helps
5 0
3 years ago
Determine the mechanical energy of this object: 1-kg ball rolls on the ground at 2 m/s
Fiesta28 [93]
The potential energy would be zero. Only kinetic energy is present in this case. To find out what the answer is we do the equation: mv^2/2 soo...

KE =mv^2/2 
KE= 1(2^2)/2 which the answer will come up by 2 Joules.
5 0
3 years ago
Boyle’s law states that the volume of a gas is inversely proportional to its pressure if the
Romashka [77]
I believe the answer is A, temperature and number of particles are constant. Correct me if i'm wrong :)
4 0
3 years ago
Read 2 more answers
A clam of mass 0.12 kg dropped by a seagull takes 3.0 s to hit the ground. [Neglect friction.]
jarptica [38.1K]

-- The acceleration of gravity is 9.8 m/s².
So if there's no air resistance, the speed of a falling object
always increases by 9.8 m/s for every second it falls.

             Speed  =  (original speed) + (gravity  x  falling time)

-- If it has no vertical speed when it started, then at the end
of 3 seconds, its speed is

                         =       (0)            + (9.8 m/s²  x  3 sec)

                       Velocity  =  29.4 m/s downward . 
6 0
3 years ago
A car travelling at a constant speed of 70km/h passes a stationary police car. The police car immediately goes on the chase acce
Virty [35]

Answer:

18.24 seconds

Explanation:

First you convert the km/h to m/s, 70km/h=(175/9)m/s,85km/h=(425/18)m/s.

You know it took 10 seconds for the police to reach 85 km/h. Calculate the distance that the car is ahead of the police (175/9)*10=1750/9m. Then by divide 1750/9 with 425/18, you will get the value 8.24. Add the 10 seconds with the 8.24 you will get 18.24 sec which is the total time.

5 0
3 years ago
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