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3 years ago

What is one common characteristic of all waves?

Physics

1 answer:

Keith_Richards [23]3 years ago

7 0

there are a reading of something like s-waves and p-waves they tell if an earthquakes coming.

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Froghopper insects have a typical mass of around 12.5 mg and can jump to a height of 42.3 cm. The takeoff velocity is achieved a

Maksim231197 [3]

Answer:

2065.005 m/s²

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s²

$v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{v^2-0^2}{2\times h}\\\Rightarrow v^2=2ah\ m/s$

Now H-h = 42.3 - 0.2 = 42.1 cm = 0.421 m

The final velocity will be the initial velocity

$v^2-u^2=2as\\\Rightarrow 0^2-u^2=2gs\\\Rightarrow -2ah=2\times g(H-h)\\\Rightarrow -2a0.002=2\times g0.421\\\Rightarrow a=-\frac{0.421\times -9.81}{0.002}\\\Rightarrow a=2065.005\ m/s^2$

Acceleration of the frog is 2065.005 m/s²

6 0

3 years ago

After a water had boiled, the temperature of the water decreases by 22degrees. The mass of the water in the kettle is 0.50kg.The

kifflom [539]

<u>Answer</u>

46,200 J

The energy of given out when a substance is losing heat is given by:

H = mcΔθ

Where m is the mass of the substance,

c is the specific heat capacity of the substance and

Δθ is the temperature change.

H = 0.50 × 22 4200

= 46,200 Joules.

4 0

4 years ago

Which of the following criteria can help Linda classify gases as greenhouse gases?

liubo4ka [24]

gas molecules having at least one oxygen atom

7 0

3 years ago

Read 2 more answers

If the Sun and volcanoes were controlling the climate, the climate would

Harman [31]

Answer:

<em>Undergo global warming at a faster rate than what we are seeing currently</em>

Explanation:

Climate can be described as the average weather of a place. The climate of a particular place can be described after looking at the temperature of the place for a year or more.

If factors, such as the Sun and volcanoes controlled climates then there would be an increase in the temperature and more global warming. Volcanoes can be described as heat erupting from mountains which will, of course, lead to global warming.

4 0

3 years ago

If a ball speeds up as it is rolling down a hill, the forces acting on it must be -

VMariaS [17]

Answer:

the forces acting on it must be strong because gravity is pushing the ball down

Explanation:

3 0

3 years ago