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beks73 [17]
3 years ago
6

if a car which is moving in a straight line streasily increases its speed from 50 kph to 60 kph in 10 minutes what is its accele

rtion?using given,asked,formula,solution, answer
Chemistry
1 answer:
VladimirAG [237]3 years ago
3 0
A=dv/ dt
a=(v2-v1)/(t2-t1)
a=(60-50)/(10-0)
a=10/10
a=1

it's acceleration is 1 km/s^(2) or 1000 m/s^(2)

Hope I can help u
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A flask contains oxygen, carbon dioxide,
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Answer:

The total pressure is 25.7 atm

Explanation:

The total pressure is the sum of the pressures of the three gases in the flask.

total pressure=(11.4+5.6+8.7) atm

                        =25.7 atm

8 0
3 years ago
What is made up of biotic and abiotic features
Crazy boy [7]
Biotic - animals anything tht is living abiotic anything tht is non-living

8 0
3 years ago
Read 2 more answers
Teniendo en cuenta los siguientes fenómenos: ebullición del agua- movimiento de un cuerpo- disolución de sal en agua- combustión
miv72 [106K]

Answer:

Las siguientes son reacciones químicas;

combustión de leña

oxidación del hierro

descomposición del agua en hidrógeno y oxígeno

Explanation:

Una reacción química da como resultado la formación de una (s) sustancia (s) nueva (s), mientras que un cambio físico no conduce a la formación de una sustancia nueva.

Las siguientes son reacciones químicas;

combustión de leña: la combustión de madera implica la oxidación del carbono según la reacción; C (s) + O2 (g) -------> CO2 (g)

oxidación del hierro: La oxidación del hierro conduce a la formación de óxidos de hierro. Como; 2Fe (s) + O2 (g) ----> 2FeO (s)

descomposición del agua en hidrógeno y oxígeno: esta es una reacción química en la que el agua se descompone de la siguiente manera; 2H2O (l) -----> 2H2 (g) + O2 (g)

Todos estos procesos enumerados anteriormente conducen a la formación de nuevas sustancias, por lo tanto, son reacciones químicas.

3 0
3 years ago
A certain first-order reaction is 27.5 percent complete in 8.90 min at 25°C. What is its rate constant?
jeyben [28]

Answer:

k= 0.145min^{-1}

Explanation:

Hello there!

In this case, according to the given information, it turns out necessary for us remember that the first-order kinetics is given by:

ln(A/A_0)=-kt

Whereas the 27.5% complete means A/Ao=0.275, and thus, we solve for the rate constant as follows:

k=\frac{ln(A/A_0)}{-t}

Then, we plug in the variables to obtain:

k=\frac{ln(0.275)}{-8.90min}\\\\k= 0.145min^{-1}

Regards!

4 0
3 years ago
3. The formula for table salt is NaCl. Is table salt ionic or covalent? Explain
d1i1m1o1n [39]

Answer:

it's an ionic compound

7 0
3 years ago
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