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3 years ago

A leaky faucet drips 40 times in 30.0 s. what is the frequency of the dripping?

Physics

1 answer:

Dmitrij [34]3 years ago

6 0

The answer is 40/30 which is 1.3 Hz.

Hope this helps. :)

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Find the change in velocity of a 369 g hockey puck subject to the force shown below.

Elena-2011 [213]

Answer:

The change in velocity is 15.83 [m/s]

Explanation:

Using the Newton's second law we have:

ΣF = m*a

The force in the graph is 185 N, therefore:

$185=0.369*a\\Where\\a=acceleration made it by the force [m/s^2]$

$a=501.35[m/s^2]$

Now using the following kinematic equation:

$V^{2}=Vi^{2} + 2*a*(x-xi) \\where\\V=final velocity [m/s]\\Vi= initial velocity [m/s] = 0 the hockey disk is in rest when receives the hit.\\ x = Final position [m] = 0.4 m\\xi = initial position [m] = 0.15m\\$

Now replacing the values:

$V^{2}=0 + 2*501.35*(0.4-0.15)\\ \\V= 15.83[m/s]$

3 0

3 years ago

The express train can travel 100 miles per hour. This information describes the train's

Tomtit [17]

Speed. This ONLY includes the miles per hour. If it had a direction it would be velocity.

7 0

3 years ago

Read 2 more answers

If I walk 15 minutes miles north and then 20 miles South:

Anna71 [15]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Kinematics.

1.) Distance travelled = 15+20 = 35 miles.

Ai the total distance covered is 35 miles.

2.) Displacement is the shortest distance from the initial point to the final point.

here it's ==> 20-15 = 5 miles

hence, displacement = 5 miles

6 0

2 years ago

The impact time for a particular collision is 3.0 x 10^-3 seconds and the impulse in the collision is 0.30 newton seconds. What

BartSMP [9]

<u>Answer</u>

C.) 1.0 x 10^2 Newton’s

<u>Explanation</u>

The Newton's second law of motion states that, the rate of change of momentum is proportional to the force producing it.

∴ F = (mv- mu)/t

Ft = mv - mu.

The quantity Ft is called the impulse.

Ft = 0.30 Newton seconds

but t = 3.0 x 10⁻³ seconds

Ft = 0.30 Ns

F × 3.0 x 10⁻³ = 0.30 Ns

F = 0.30 / (3.0 x 10⁻³)

= 100 N

Answer = C.) 1.0 x 10^2 Newton’s

8 0

3 years ago

Read 2 more answers

Determine which type of property each statement describes by typing “physical” or “chemical” in the blank. Hydrogen is a colorle

Hitman42 [59]

Answer:

Physical

Chemical

Physical

Explanation:

thats pretty much it

7 0

3 years ago

Read 2 more answers