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3 years ago

What is the force exerted if a 52kg student accelerates into their desk at 5/ms2

Chemistry

2 answers:

murzikaleks [220]3 years ago

3 0

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{260 \: newton}}}}}$

Explanation:

Mass ( m ) = 52 kg

Acceleration ( a ) = 5 m / s²

Force ( F ) = ?

According to Newton's second law of motion ,

$\boxed{ \sf{force = mass \times acceleration}}$

$\longrightarrow{ \sf{force = 52 \times 5}}$

$\longrightarrow{ \sf{force = 260 \: newton}}$

Hope I helped!

Best regards! :D

Tom [10]3 years ago

3 0

Answer:

F=ma

52×5=260

dont worry

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chegg write a net ionic equation describing the oxidation of no2 2 to no3 2 by o2 in a basic solution.

Marina86 [1]

When the same species undergoes both oxidation and reduction in a single redox reaction, this is referred to as a disproportionation. Therefore, divide it into two equal reactions.

NO2→NO^−3

NO2→NO

and do the usual changes

First, balance the two half reactions:

3. NO2 +H2O →NO^−3 + 2 H^+ + e−

4. NO2 +2 H^+ + 2e− → NO + H2O

Now multiply one or both half-reactions to ensure that each has the same number of electrons. Here, Eqn (3) x 2 results in each half-reaction having two electrons:

5. 2 NO2 + 2 H2O → 2 NO^−3 + 4H^+ + 2e−

Now add Eqn 4 and 5 (the electrons now cancel each other):

3NO2 + 2H^+ + 2H2O → NO + 2 NO−3 + H2O + 4H+

and cancel terms that’s common to both sides:

3NO2 + H2O → NO + 2NO^−3 + 2H+

This is the net ionic equation describing the oxidation of NO2 to NO3 in basic solution.

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7 0

2 years ago

When liquid silver nitrate and liquid sodium chloride or combine, solid silver chloride forms along with a new liquid, sodium ni

schepotkina [342]

Liquid silver nitrate and liquid sodium chloride combined forms the substance silver chloride.

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3 years ago

For an enzyme that displays Michaelis-Menten kinetics, what is the reaction velocity, v(as a percentage of Vmax), observed at:a)

fiasKO [112]

Answer:

a) 50% of the maximum velocity

b) 33.33% of the maximum velocity

c) 9.09% of the maximum velocity

d) 66.66% of the maximum velocity

e) 90.9% of the maximum velocity

Explanation:

The Michaelis-Menten kinetis is represented by

v = Vmax*S/(Km+S)

where

v= reaction rate

S= Substrate's concentration

Vmax= maximum rate of reaction

Km= constant

a) for S=Km

v = Vmax*Km/(2Km) = Vmax/2

v/Vmax = 1/2= 50% of the maximum velocity

b) for S=Km/2

v = Vmax*(Km/2)/(3/2Km) = Vmax/3

v/Vmax = 1/3= 33.33% of the maximum velocity

c) for S= 0.1*Km=Km/10

v = Vmax*(Km/10)/(11/10Km) = Vmax/11

v/Vmax = 1/11= 9.09% of the maximum velocity

d) for S=2*Km

v = Vmax*(2*Km)/(3*Km) = (2/3)* Vmax

v/Vmax = 2/3 = 66.66% of the maximum velocity

d) for S=10*Km

v = Vmax*(10*Km)/(11*Km) = (10/11)* Vmax

v/Vmax = 10/11 = 90.9 % of the maximum velocity

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4 years ago

Many food chains together create a______

Amanda [17]

Many food chains together create a food web.

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3 0

3 years ago

What orbital type is being filled throughout the transition metal B Groups?

Nataliya [291]

Answer:

The correct answer is: d-orbital

Explanation:

The transition metals are the chemical elements that belong to the B-group of the periodic table, from group 1B to 8B. The B-group is located between the groups IIA and IIIA in the periodic table.

The general electronic configuration of the chemical elements belonging to this group is (n-1) d¹⁻¹⁰ ns⁰⁻², because of the partially filled d-subshell in the ground state or excited state. Therefore, the transition metals are refereed as the d-block elements.

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3 years ago