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3 years ago

What is the theory behind a ticker tape lab?

1 answer:

5 0

Purpose: experiments will use it to measure the straight-line accelerated motion of a human hand. The displacement data will be measured and velocity and acceleration will be calculated, run the ticker tape under the guides on the timer and under the carbon circle.Hope this helps! ; )

You might be interested in

A ladybug falls into small hole. it takes 8.6s for the ladybug to hit the bottom. how deep is the hole? (take g=9.81 m/s²)

lutik1710 [3]

Use the kinematics formula: y= yo+Vo-1/2at^2
Yo- initial position
Vo- initial velocity

6 0

4 years ago

Why is the absolute magnitude of some stars greater than their apparent magnitude?

Sedbober [7]

<h3>Apparent magnitude of star:</h3>

Apparent magnitude of a star is how bright it appears on earth.

<h3>Absolute magnitude of star:</h3>

Absolute magnitude of star is how bright it appear from a distance of 32.6 light years from earth.

Due to farthest distance of star from earth, it appears smaller. But when we look at it from near it will appear greater in size or magnitude. That is why, we can say that absolute magnitude of some stars is greater than their apparent magnitude.

7 0

4 years ago

If a projectile is fired with an initial velocity of v0 meters per second at an angle α above the horizontal and air resistance

lawyer [7]

Answer:

a) The bullet hits the ground 51.02 s after it was fired.

b) 22,092.3 units

c) 3188.8 units

Explanation:

a) Assuming that the level the bullet was fired from is the ground level.

The bullet hits the ground when y = 0

y = (v₀ sin(α))t − (1/2) gt²

v₀ = 500 m/s

α = 30°

y = 0

0 = (500 sin 30) t - 0.5(9.8)t²

4.9t² - 250t = 0

t(4.9t - 250) = 0

t = 0 s or (4.9t - 250) = 0

The t = 0 s indicates that the bullet was indeed fired from the ground level.

The time it eventually hits the ground back

4.9t = 250

t = 51.02 s

The bullet hits the ground 51.02 s after it was fired.

b) The distance from the firing point that the bullet lands.

x = (v₀ cos(α))t

At this horizontal distance, t = 51.02 s

Substituting the parameters

x = (500 cos 30°) × 51.02

x = 22,092.3 units

c) Maximum height attained by the bullet

Maximum height is given by

H = (u² sin² α)/2g

H = (500² sin² 30°)/(2×9.8)

H = 3188.8 units

Hope this Helps!!!

6 0

4 years ago

A submarine is carefully navigating its way to the seafloor. It sends out “pings”—a radar wave—as it descends to keep track of i

Murljashka [212]

Answer:

D. impossible to estimate

Explanation:

According to the doppler effect, the frequency of the wave will increase.

let u be the speed of the submarine,

let the speed of sound in water be c,

let initial frequency of the sent out wave be f,

let frequency of received wave be f'

The distance occupied by the new wave will be (c - u), therefore, the new wavelenght will be (c - u)/f

Frequency = speed of sound ÷ wavelenght

therefore the new Freq f' will be

f' = cf/(c - u) which will be shorter than the initial wavelenght.

But we do not know the speed of the submarine, so we can't estimate.

8 0

4 years ago

State the kinematic quantity that is equivalent to the slope of a position-time graph

Anni [7]

The figure shows the arrangement of given data.

The displacement is considered along X direction and time along Y direction.

The slope of the graph is given by tan θ

So tan θ = Δx/Δt = Velocity between those two points considered for finding slope of graph.

So slope of position time is graph is equivalent to kinematic quantity Velocity.

6 0

3 years ago