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N76 [4]
3 years ago
9

The length of a rope is 5 m. A standing wave on the rope has four nodes. what is the wavelength of the wave

Physics
1 answer:
Evgen [1.6K]3 years ago
4 0
Here’s the answer, idk, it might be correct

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To maintain your body temperature your body converts chemical potential energy into thermal energy true or false
max2010maxim [7]
 It's is True that your body temperature your body converts chemical potential energy into thermal energy
7 0
3 years ago
Read 2 more answers
h(t) = - 16t2 + 64t + 112 where t is the time in seconds. After how many seconds does the arrow reach it maximum height? Round t
laila [671]

Answer:

2 seconds

Explanation:

The function of height is given in form of time. For maximum height, we need to use the concept of maxima and minima of differentiation.

h(t)=-16t^{2}+64t+112

Differentiate with respect to t on both the sides, we get

\frac{dh}{dt}=-32t+64

For maxima and minima, put the value of dh / dt is equal to zero. we get

- 32 t + 64 = 0

t = 2 second

Thus, the arrow reaches at maximum height after 2 seconds.

8 0
3 years ago
If 10 waves pass a point each second and their wavelength is 30m, what is their speed?
svet-max [94.6K]

Answer:

300m/s

Explanation:

velocity = frequency(wavelength)

Since 10 waves pass a point each second, frequency is 10

therefore, speed = (10)(30 = 300m/s

5 0
3 years ago
2. A 0.8 kg tetherball hangs on the end of a cord. It is hit by a child and rises 2.1 m above the ground. a. What is the maximum
skad [1K]

Answer:

E = 16.464 J

Explanation:

Given that,

Mass of tetherball, m = 0.8 kg

It is hit by a child and rises 2.1 m above the ground, h = 21. m

We need to find the maximum gravitational potential energy of the ball. The formula for the gravitational potential energy is given by :

E = mgh

g is acceleration due to gravity

E = 0.8 kg × 9.8 m/s² × 2.1 m

= 16.464 J

So, the maximum potential energy of the ball is 16.464 J.

3 0
3 years ago
The process by which hot and cold air are transferred in the atmosphere is
elena-14-01-66 [18.8K]
Hey there!

<span>The process by which hot and cold air are transferred in the atmosphere is convection.</span>
8 0
3 years ago
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