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3 years ago

6

What weather would create the best surfing waves

2 answers:

Naya [18.7K]3 years ago

8 0

Sunny and a lot of wind.

forsale [732]3 years ago

4 0

Answer:

Weathering & Erosion.

Explanation:

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8750 J of heat are applied to a piece of aluminium causing a 56C increase in its

vitfil [10]

Answer:146.8983 grams

5 0

3 years ago

A 3200-lb car is moving at 64 ft/s down a 30-degree grade when it runs out of fuel. Find its velocity after that if friction exe

Karolina [17]

Answer:

The velocity is 40 ft/sec.

Explanation:

Given that,

Force = 3200 lb

Angle = 30°

Speed = 64 ft/s

The resistive force with magnitude proportional to the square of the speed,

$F_{r}=kv^2$

Where, k = 1 lb s²/ft²

We need to calculate the velocity

Using balance equation

$F\sin\theta-F_{r}=m\dfrac{d^2v}{dt^2}$

Put the value into the formula

$3200\sin 30-kv^2=m\dfrac{d^2v}{dt^2}$

Put the value of k

$3200\times\dfrac{1}{2}-v^2=m\dfrac{d^2v}{dt^2}$

$1600-v^2=m\dfrac{d^2v}{dt^2}$

At terminal velocity $\dfrac{d^2v}{dt^2}=0$

So, $1600-v^2=0$

$v=\sqrt{1600}$

$v=40\ ft/sec$

Hence, The velocity is 40 ft/sec.

4 0

3 years ago

A bowling ball has a mass of 50 kg and is traveling with a velocity of 18 m/s 4 points

IRISSAK [1]

momentum= mass × velocity

p= 50×18

momentum= 900 kg m/s

4 0

3 years ago

What would happen if you changed the position of the screen, but kept the other factors the same?

sashaice [31]

Answer:

I wish I could help but iam srry

4 0

2 years ago

A bicycle racer sprints near the end of a race to clinch a victory. The racer has an initial velocity of 12.1 m/s and accelerate

horrorfan [7]

Answer:

v= 14.22 m/s

Explanation:

Given that

u = 12.1 m/s

a=0.35 m/s².

t= 6.07 s

We know v = u +at

v=final velocity

u=initial velocity

t=time

a=acceleration

Now by putting the values in the above equation

v= 12.1 + 0.35 x 6.07 m/s

v= 14.22 m/s

Therefore the final velocity will be 14.22 m/s.

7 0

3 years ago