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3 years ago

What is the compound oc2 called?

Physics

1 answer:

MAXImum [283]3 years ago

5 0

The answer to your question is dioxygen carbide

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How can magnet pick wooden fish

Korolek [52]

It would have to have a magnet on the other side

5 0

3 years ago

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Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and

monitta

Answer:

$a=2,5m/s^2$

Explanation:

From the question we are told that:

Coefficient of kinetic friction $\mu= 0.200$

Vertical Mass $M_v=3kg$

Horizontal mass $M_h=3.00kg$

Generally the equation for kinetic force $F_k$ is mathematically given by

$F_k=\mu N\\F_k=0.2*3\\F_k=0.6$

Generally the equation for T is mathematically given by

$For M_v=3kg3g-T=3a$

For $M_h=3kg$

$T=M_v V+F_k\\T=3.0a+0.6$

Therefore substituting

$3-3a-0.6=3a\\2.4g=6a$

$a=2,5m/s^2$

3 0

2 years ago

lood flows through a section of a horizontal artery that is partially blocked by a deposit along the artery wall. As a hemoglobi

uysha [10]

Answer:

$P_1 - P_2 =219.62\ Pa$

Explanation:

given,

density of blood = 1060 kg/m³

v₂ = 0.800 m/s

v₁ = 0.475 m/s

change in pressure calculation

using Bernoulli's equation

$P_1 +\dfrac{1}{2}\rho v_1^2 = P_2 + \dfrac{1}{2}\rho v_2^2$

both are at same level

$P_1 - P_2 =\dfrac{1}{2}\rho (v_2^2- v_1^2)$

$P_1 - P_2 =\dfrac{1}{2}1060\times (0.8^2- 0.475^2)$

$P_1 - P_2 =219.62\ Pa$

the change in pressure is equal to 219.62 Pa

5 0

3 years ago

A slice of pizza has 500 kilocalories. If we could burn the pizza and use all the heat to warm a 50 liter container of cold wate

quester [9]

Answer:

10 degree C

Explanation:

Q = 500 kcal = 500 x 1000 x 4.186 J = 2.1 x 10^6 J

V = 50 liter

m = Volume x density = 50 x 10^3 x 1000 = 50 kg

Let ΔT be the rise in temperature.

Specific heat of water = 4186 J/kg C

Q = m x c x ΔT

2.1 x 10^6 = 50 x 4186 x ΔT

ΔT = 10 degree C

4 0

2 years ago

Light enters air from water. The angle of refraction will be A. less than the angle of incidence. B. greater than or equal to th

Rina8888 [55]

Answer:

E. greater than the angle of incidence.

Explanation:

Snell's law states that:

$n_i sin \theta_i = n_r sin \theta_r$ (1)

where

$n_i, n_r$ are the refractive index of the first and second medium

$\theta_i, \theta_r$ are the angle of incidence and refraction, respectively

For light moving from water to air, we have:

$n_i = 1.33$ (index of refraction of water)

$n_r = 1.00$ (index of refraction of air)

Substituting into (1) and re-arranging the equation, we get

$\sin \theta_r = \frac{n_i}{n_r} sin \theta_i = 1.33 sin \theta_i$

which means that

$\theta_r > \theta_i$

so, the correct answer is

E. greater than the angle of incidence.

4 0

3 years ago

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