3 years ago

What is the frequency of this wave 1 2 3 4

Physics

1 answer:

viva [34]3 years ago

3 0

The frequency of this wave is 3

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The distance from the sun to Earth would be

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less than one light year!

Explanation:

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You throw a ball straight up. The ball has an initial speed of 11.2 m/s when it leaves your hand What is the maximum height the

Jet001 [13]

Answer:

Explanation:

Given

initial velocity $u=11.2\ m/s$

At maximum height velocity of ball is zero

using

$v^2-u^2=2as$

where v=final velocity

u=initial velocity

a=acceleration

s=displacement

$(0)^2 -(11.2)^2=2\times (-9.8)\times (s)$

$s=\frac{11.2^2}{2\times 9.8}$

$s=6.4$

time taken by the ball to reach the maximum height

$v=u+at$

$0=11.2-9.8\times t$

$t=\frac{11.2}{9.8}$

$t=1.142\ s$

At $t=2\ s$ height of ball is

$h=ut+\\frac{1}{2}at^2$

$h=11.2\times 2-\frac{1}{2}9.8\times (2)^2$

$h=22.4-19.6$

$h=2.8\ m$

i.e. ball is moving downward

height at $v=5\ m/s$

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$s=\frac{25-125.4}{2\times (-9.8)}$

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3 years ago

An ice skater starts a spin with her arms stretched out to the sides. she balances on the tip of one skate to turn without frict

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It increases by a factor of 4.

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Read 2 more answers

how much force must be applied to accelerate a 3 kg remote control car from rest to 10 m/s in 5 seconds

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10/5 = 2 m/s^2
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3 years ago

High friction materials

Harrizon [31]

Answer:

For the dry and static friction materials, some of these are Rubber, Aluminum, Gold, Platinum,

Explanation:

High friction materials has higher coefficient of friction (COF).

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