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3 years ago

Study the following reaction carefully. What classification should this reaction have?

Physics

2 answers:

Mariulka [41]3 years ago

6 0

Answer:

Synthesis reaction

Explanation:

Synthesis reaction: two or more compounds combine to form one.

A + B → C

Decomposition reaction: one compound forms two or more.

C → A + B

Single replacement reaction: an element in one compound is replaced with another element.

AB + C → AC + B

Double replacement reaction: elements in two compounds replace each other.

AB + CD → AC + BD

Nady [450]3 years ago

6 0

Answer: synthesis is the correct answer

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The period T of a simple pendulum depends on the length L of the pendulum and the acceleration of gravity g (dimensions L/P). (a

andriy [413]

Answer:

a). L= meters, g= $\frac{m}{s^{2} }$

b). L= 5cm T=0.448

L= 10 m T=6.34

c). Constant= $\frac{2*\pi }{\sqrt{g} }=\frac{2*\pi }{\sqrt{9.8} }=2.007089923$

Explanation:

a).

$T= 2*\pi \sqrt{\frac{L}{g} } = 2*\pi \sqrt{\frac{m}{\frac{m}{s^{2} } } } \\T= 2*\pi \sqrt{\frac{s^{2}*m }{m} }=2*\pi \sqrt{s^{2} } \\T= s$

b).

$L_{1}= 5 cm$ , $5cm *\frac{1m}{100 cm} = 0.05 m$

$T=2*\pi \sqrt{\frac{L}{g} }$

$T=2*\pi \sqrt{\frac{0.05}{9.8} }= 0.448$ s

$L_{1}= 10 m$

$T=2*\pi \sqrt{\frac{L}{g} }$

$T=2*\pi \sqrt{\frac{10}{9.8} }= 6.43$ s

c).

$g= 9.8 \frac{m}{s^{2} }$

$T=2*\pi *\frac{\sqrt{L} }{\sqrt{g} } =T=2*\pi *\frac{\sqrt{L} }{\sqrt{9.8} } \\T= 2*\pi \frac{1}{\sqrt{9.8}} *\sqrt{L}\\T= 2.007089923*\sqrt{L}$

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3 years ago

What do we call the distance between any two successive crests of a wave

icang [17]

That is actually called the Wave Length.

8 0

3 years ago

Two solid spheres of radius R made of the same type of steel are placed in contact. The magnitude of the gravitational force the

dimulka [17.4K]

F1 = G * m*m / [2r] ^2 = G * m^2 / 4r^2

Given the the mass is proportional to the volume and the volume is proportional to r^3, the mass of each big sphere is 3^3 = 27 times the mass of the small spheres. And the distance between the centers is 3r + 3r = 6r

F2 = G * [27m * 27m]/* [6r]^2 = G* 27^2 m^2 / 36r^2 = 81 G*m^2 / 4r^2 = 81*F1

Therefore, F2 = 81F1

Answer: option D) 81F1.

3 0

3 years ago

Four wires are made of the same highly resistive material, cut to the same length, and connected in series. Wire 1 has resistanc

Paraphin [41]

Answer:

$V_2 = \frac{R_2 V_0}{R_1+R_2+R_3+R_4}$

Explanation:

The 4 wires are connected in series: this means that the same current flow through them, and the voltage of the battery, V0, is equal to the sum of the voltages on each individual resistor:

$V_0=V_1+V_2+V_3+V_4$

Also, the equivalent resistance of the series circuit is

$R_{eq}=R_1+R_2+R_3+R_4$

The voltage V2 across wire 2 is given by Ohm's law:

$V_2 = R_2 I$ (1)

where I is the total current in the circuit, which is given by:

$I=\frac{V_0}{R_{eq}}=\frac{V_0}{R_1+R_2+R_3+R_4}$

Substituting this into eq. (1), we find an expression for V2:

$V_2 = \frac{R_2 V_0}{R_1+R_2+R_3+R_4}$

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3 years ago

What does the term conserved mean?

Morgarella [4.7K]

There’s many terms to it

1 : to keep in a safe or sound state He conserved his inheritance. especially : to avoid wasteful or destructive use of conserve natural resources conserve our wildlife. 2 : to preserve with sugar. 3 : to maintain (a quantity) constant during a process of chemical, physical, or evolutionary change conserved DNA ...

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3 years ago