Which type of lens is shown in the picture below? plane refractional concave

Given (kg/s) (m/s) , what is the resulting unit?

postnew [5]

I think you mean for those fractions to be multiplied.
In that case, you get

kg - m / sec² = Newton .

7 0

3 years ago

Green plants give us oxygen to breathe using photosynthesis. Here is the unbalanced chemical reaction that occurs:

bekas [8.4K]

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4 0

3 years ago

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La frecuencia de una onda es 60Hz y su velocidad, 30 m/s. Calcula su longitud de onda

Andreas93 [3]

   Wavelength = (speed) / (frequency)

   = (30 m/s) / (60/sec) =

   = 0.5 meter .

3 0

4 years ago

What is the temperature of a sample of gas when the average translational kinetic energy of a molecule in the sample is 8.37 × 1

-BARSIC- [3]

Answer:

404K

Explanation:

Data given, Kinetic Energy.K.E=8.37*10^-21J

Note: as the temperature of a is increase, the rate of random movement will increase, hence leading to more collision per unit time. Hence we can say that the relationship between the kinetic energy and the temperature is a direct variation.

This relationship can be expressed as

$K.E=\frac{3}{2}KT$

where K is a constant of value 1.38*10^-23

Hence if we substitute the values, we arrive at

$T=\frac{2/3(8.37*10^{-21})}{1.38*10^-23}\\ T=404K$

converting to degree we have $131^{0}C$

4 0

3 years ago

Please answer the question for gravitational field attached in the image.

goblinko [34]

We are given:

Radius of Venus= 6 * 10⁶ m

Height above the planet's ground = 9.4 * 10⁶ m

Mass of Venus = 4.867 * 10²⁴ kg

Finding the Gravitational Field:

We first need to calculate the distance between the center of masses

Distance between center of masses:

Since the point is above the surface of Venus, the radius of Venus and the height will add

Distance between the center of masses = 9.4*10⁶ + 6 * 10⁶

Distance (r) = 15.4 * 10⁶ m

Now back to Gravitational field!

We know the formula for Gravitational Field:

g = GM / r² [where g is the gravitational field, M is the mass of the planet, r is the distance between the center of masses and G is the gravitational constant]

plugging the known values in the formula:

g = (6.67 * 10⁻¹¹ * 4.867 * 10²⁴) / (15.4*10⁶)² [G = 6.67*10⁻¹¹ Nm²/kg²]

g = (32.46 * 10¹³) / (237 * 10¹²)

g = (32.46 * 10¹³) / (23.7 * 10¹³)

g = 32.46/23.7 [the 10¹³ got cancelled out]

g = 1.367 N/kg² (or m/s²)

7 0

3 years ago