3 years ago

Predict how the wavelength of waves traveling with the same speed would change if the frequency of the waves increases?

1 answer:

6 0

The wavelength would decrease because frequency is inversly proportional to the wavelength provided the speed is constant: f=v/λ

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What waves have high amplitudes

Olegator [25]

-- loud sounds

-- bright lights

-- strong radio signals

-- Slinkies that can pinch you painfully

-- a tsunami in the ocean

-- earthquakes above Richter 5 or 6

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4 years ago

A 1100 kg car is traveling around a flat 82.3 m radius curve. The coefficient of static friction between the car tires and the r

Novay_Z [31]

Answer:

The maximum speed of car will be 20.5m/sec

Explanation:

We have given mass of car = 1100 kg

Radius of curve = 82.3 m

Static friction $\mu _s=0.521$

We have to find the maximum speed of car

We know that at maximum speed centripetal force will be equal to frictional force $m\frac{v^2}{r}=\mu _srg$

$v=\sqrt{\mu _srg}=\sqrt{0.521\times 82.3\times 9.8}=20.5m/sec$

So the maximum speed of car will be 20.5m/sec

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3 years ago

Read 2 more answers

As compared to the asthenosphere, the lithosphere is ____________. a. hotter and more able to flow b. hotter and less able to fl

Mnenie [13.5K]

Answer:

its a solid but can flow

Explanation:

those answers to choose from are wrong

8 0

2 years ago

Which change is the best example of a physical change?

murzikaleks [220]

The answer would be a nail rusting, but really it could be any of these.

3 0

3 years ago

In a little league baseball game, the 145 g ball enters the strike zone with a speed of 14.0m/s . the batter hits the ball, and

Novosadov [1.4K]

Answer:

5365 N

Explanation:

v = Final velocity = 23 m/s

u = Initial velocity = -14 m/s (opposite direction)

m = Mass of ball = 145 g

t = Time taken = 1 ms

Impulse is given by

$J=m(v-u)$

Impulse is also given by

$J=Ft$

$Ft=m(v-u)\\\Rightarrow F=\dfrac{m(v-u)}{t}\\\Rightarrow F=\dfrac{0.145\times (23-(-14))}{1\times 10^{-3}}\\\Rightarrow F=5365\ N$

The magnitude of the average force exerted by the bat on the ball is 5365 N

8 0

3 years ago