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Gnesinka [82]
4 years ago
7

When the temperature of water increases from room temperature to 90*C the process of heating the water is

Physics
1 answer:
polet [3.4K]4 years ago
8 0
The process is called ENDOTHERMIC
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Frequency of the wave below?
agasfer [191]

It's hard to tell exactly what's happening in that 110 cm that you marked over the wave. What is under the ends of the long arrow ? How many complete waves ? I counted 4.5 complete waves ... maybe ?

If there are 4.5 complete waves in 110cm, then the length of 1 wave is (110/4.5)=24.44cm.

Frequency = speed/wavelength

Frequency = 2m/s /0.2444m

Frequency = 8.18 Hz

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3 years ago
Using the ideas from this section and the periodic table, choose the more reactive nonmetal. C or F
alexira [117]

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Which term is the product of force and distance?
lesya [120]

Answer:

work

Explanation:

it is a scalar quantity. it is equal to product of force and distance if the direction of motion is in direction of force in straight line

4 0
3 years ago
A transverse, wave travelling on a chord is represented by D=0.22sin (5.6x+34t) where D and x are inmeters and t is in seconds.
ArbitrLikvidat [17]

Answer:

a) λ = 1.12 m

b) f = 5.41 Hz

c) v = 154.54 m/s

d) A = 0.22m

e)

v_D_{max}=7.48\frac{m}{s}\\\\v_D_{min}=-7.48\frac{m}{s}\\\\

Explanation:

You have the following equation for a wave traveling on a cord:

D=0.22sin(5.6x+34t)     (1)

The general expression for a wave is given by:

D=Asin(kx-\omega t)    (2)

By comparing the equation (1) and (2) you have:

A: amplitude of the wave = 0.22m

k: wave number = 5.6 m^-1

w: angular velocity = 34 rad/s

a) The wavelength is given by substitution in the following expression:

\lambda=\frac{2\pi}{k}=\frac{2\pi}{5.6m^{-1}}=1.12m

b) The frequency is:

f=\frac{\omega}{2\pi}=\frac{34s^{-1}}{2\pi}=5.41Hz

c) The velocity of the wave is:

v=\frac{\omega}{k}=\frac{34s^{-1}}{0.22m^{-1}}=154.54\frac{m}{s}

d) The amplitude is 0.22m

e) To calculate the maximum and minimum speed of the particles you obtain the derivative of  the equation of the wave, in time:

v_D=\frac{dD}{dt}=(0.22)(34)cos(5.6x+34t)\\\\v_D=7.48cos(5.6x+34t)

cos function has a minimum value -1 and maximum +1. Then, you obtain for maximum and minimum velocity:

v_D_{max}=7.48\frac{m}{s}\\\\v_D_{min}=-7.48\frac{m}{s}\\\\

6 0
3 years ago
Give me a copy and pasted bible lol
Ivanshal [37]

Answer:

what

Explanation:

3 0
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