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yKpoI14uk [10]
3 years ago
5

The microwaves produced inside a microwave have a wavelength of 12.0m and a frequency of 25Hz. At what speed do the microwaves t

ravel in units of m/s ?
Physics
1 answer:
inn [45]3 years ago
8 0

Answer: 300 m/s

Explanation:

The equation for finding wave speed is the wavelength times the frequency which would be

12.0mx 25hz=300m/s

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Evaluate (5.7x106 kg) * (6.3x10-2 m/s2) and express the answer in<br> scientific notation.
VladimirAG [237]

Answer:

Force = 3.591 * 10⁵ Newton

Explanation:

Given the following data;

Mass = 5.7 * 10⁶ kg

Acceleration = 6.3 * 10^-2 m/s²

To express the force as a scientific notation;

Force = mass * acceleration

Force = 5.7 * 10⁶ * 6.3 * 10^-2

Force = 359100 Newton

In scientific notation;

A number is said to be written in scientific notation when we multiply the numbers between 1 and 10 by a power of 10.

Force = 3.591 * 10⁵ Newton

5 0
3 years ago
A 500 gram piece of metal has a volume of 2.75cm^3. What is its density?
olga_2 [115]

Answer:

mass= 500 grams

volume= 2.75 cm^3

density= 181.818182 g/cm^3

Explanation:

density is mass divided by volume so your answer is 181.818..

3 0
3 years ago
Doe the baby diaper tabs go to the front or back. Huggies diaper.
Zielflug [23.3K]

Answer:

back lol

Explanation:

Pull the tabs and wrap around to stick to the front of the diaper:)

3 0
4 years ago
Read 2 more answers
At what angle should the roadway on a curve with a 50m radius be banked to allow cars to negotiate the curve at 12 m/s even if t
kari74 [83]

Answer:

The road bank angle is 16.38⁰.

Explanation:

radius of curvature of the road, r = 50 m

allowable speed of car on the road, v = 12 m/s

The bank angle is calculated as;

\theta = tan^{-1} (\frac{v^2}{gr} )

where;

θ is the road bank angle

g is acceleration due to gravity = 9.8 m/s²

\theta = tan^{-1} (\frac{v^2}{gr} )\\\\\theta = tan^{-1} (\frac{12^2}{9.8 \times 50} )\\\\\theta = tan^{-1} ( 0.2939)\\\\\theta = 16.38 ^0

Therefore, the road bank angle is 16.38⁰.

8 0
3 years ago
What is the difference between reproducibility and repeatability​
Aleks04 [339]

Answer:

Repeatability is how much variability in the measurement system is caused by the measurement device. Reproducibility is how much variability in the measurement system is caused by differences between operators.

6 0
3 years ago
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