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Oxana [17]
2 years ago
8

A student mixed two clear liquids together in a beaker. A solid and a new liquid formed. The student forgot to write down the ma

ss of one of the reactants. The
rest of the data are shown in the table below.

What is the mass of liquid reactant A?
A 1.0 g
B 8.0 g
C 9.0 g
D 11.0 g
E 20.0 g

Physics
1 answer:
ziro4ka [17]2 years ago
3 0
The answer to the question is probably A
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v_y=26.5 sin(53)=21.163v_x=26.5 cos(53)=15.948 
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let x=0since you are going to land on a 3m tally=-.5(9.8)t^2+ 21.163*t
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8 0
3 years ago
To view an interactive solution to a problem that is similar to this one, select Interactive Solution 7.24. A 0.0129-kg bullet i
ipn [44]

Answer:

t=0.42s

Explanation:

Here you have an inelastic collision. By the conservation of the momentum you have:

m_1v_1+m_2v_2=(m_1+m_2)v

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m2: wooden block mass

v1: velocity of the bullet

v2: velocity of the wooden block

v: velocity of bullet and wooden block after the collision.

By noticing that after the collision, both objects reach the same height from where the wooden block was dropped, you can assume that v is equal to the negative of v2. In other words:

m_1(-v_1)+m_2v_2=(m1+m2)(-v2)

Where you assumed that the negative direction is upward. By replacing and doing v2 the subject of the formula you get:

-(0.0129kg)(767m/s)+(1.17kg)v_2=(1.1829kg)(-v_2)\\\\v_2=4.20m/s

Now, with this information you can use the equation for the final speed of an accelerated motion and doing t the subject of the formula. IN other words:

v_2=v_o+gt\\\\t=\frac{v_2-v_o}{g}=\frac{4.2m/s-0m/s}{9.8m/s^2}=0.42s

hence, the time is t=0.42 s

4 0
3 years ago
a cyclist coasting down a 5.0 ◦ incline at a constant speed of 6.0 km/h because of air resistance. If the total mass of the bicy
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Answer:

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3 0
3 years ago
Vectors are an important part of the language of science, mathematics, and engineering.
tensa zangetsu [6.8K]

Answer:

<u><em>a. True</em></u>

Explanation:

<em>Vectors are an important part of the language of science, mathematics, and engineering.</em>

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2 years ago
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<h3>Answer;</h3>

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