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3 years ago

A + B → C + D

Physics

2 answers:

Mila [183]3 years ago

8 0

Answer:

D) 4 grams

Explanation:

Reactant -> Product

If there are 4 grams of product produced, then there would have had to have been 4 grams of reactant to make it a balanced equation.

nata0808 [166]3 years ago

4 0

I think it's D) four grams were consumed

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An infinitely long cylindrical insulating shell of inner radius a and outer radius b has a uniform volume charge density p. Dete

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Answer: The electric field is: a) r<a , E0=; b) a<r<b E=ρ (r-a)/εo;

c) r>b E=ρ b (b-a)/r*εo

Explanation: In order to solve this problem we have to use the Gaussian law in diffrengios regions.

As we know,

∫E.dr= Qinside/εo

For r<a --->Qinside=0 then E=0

for a<r<b er have

E*2π*r*L= Q inside/εo in this case Qinside= ρ.Vol=ρ*2*π*r*(r-a)*L

E*2π*r*L =ρ*2*π*r* (r-a)*L/εo

E=ρ*(r-a)/εo

Finally for r>b

E*2π*r*L =ρ*2*π*b* (b-a)*L/εo

E=ρ*b* (b-a)*/r*εo

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3 years ago

If an object travels 15 metres in 5 seconds, what is the slope of its distance-time graph?

SOVA2 [1]

Answer:

3 m/s

Explanation:

The slope is distance divided by time, also known as 'speed'.

15 meters / 5 seconds = 3 meters per second.

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3 years ago

Un automóvil se mueve 80 m en 40 s con una velocidad constante. ¿Cuál es la velocidad del automóvil? Ayuda plissssssssssssssssss

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Answer:

Velocidad = 2 m/s

Explanation:

Dados los siguientes datos;

Distancia = 80 m

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Para encontrar la velocidad del automóvil;

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La velocidad es una cantidad vectorial y, como tal, tiene magnitud y dirección.

Matemáticamente, la velocidad viene dada por la ecuación;

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Sustituyendo en la fórmula, tenemos;

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3 years ago

In an experiment, 50 g of each material were placed in a calorimeter with the same starting water volume and temperature. Which

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Answer:it’s different materials have different abilities to transfer energy.

Explanation:

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3 years ago

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A train has a constant speed of 10 m/s around a track with a diameter of 45 m what is the centripal acceleration?

Bumek [7]

Answer:

$a_{c}= 4.44\frac{m}{s}$

Explanation:

When an object goes on a circular movement, it has a centripetal acceleration that always points toward the center of the circle, it is the responsible of the change of direction in the movement of the object. and that centripetal acceleration is related with the speed in the next way:

$a_{c}=\frac{v^{2}}{r}$ , with v the speed, r the radius of the track that is half of the diameter (22.5 m)

$a_{c}=\frac{10^{2}}{22.5}$

$a_{c}= 4.44\frac{m}{s}$

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3 years ago