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Paul [167]
2 years ago
5

Examine the distance-time graph.

Physics
1 answer:
kakasveta [241]2 years ago
6 0

Answer:

A

Explanation:

because it is accelerating and as the vehicle accelerates the speed increas

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Katie traveled southwest a distance of 4000m on a bicycle in 5400s. What is her velocity?
nlexa [21]
The correct answer would be 1.35m/s sw.
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3 years ago
4.   Which of the following is the term used to describe a body's resistance to a change in motion? 
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Inertia ..................
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3 years ago
A physical pendulum consists of a meter stick that is pivoted at a small hole drilled through the stick a distance d from the 50
PSYCHO15rus [73]

Answer:

(a). The value of d is 0.056 cm and 1.496 cm.

(b). The time period is 1.35 sec.

Explanation:

Given that,

Length = 50.00 cm

Time period = 2.50 s

Time period of pendulum is defined as the time for one complete cycle.

The period depends on the length of the pendulum.

Using formula of time period

T=2\pi\sqrt{\dfrac{I}{mgh}}

Where, I = moment of inertia

We need to calculate the value of d

Using parallel theorem of moment of inertia

I=I_{cm}+md^2

For a meter stick mass m , the rotational inertia about it's center of mass

I_{cm}-\dfrac{mL^2}{12}

Where, L = 1 m

Put the value into the formula of time period

T=2\pi\sqrt{\dfrac{\dfrac{mL^2}{12}+md^2}{mgd}}

T=2\pi\sqrt{\dfrac{L^2}{12gd}+\dfrac{d}{g}}

T^2=4\pi^2(\dfrac{L^2}{12gd}+\dfrac{d}{g})

Multiplying both sides by d

tex]T^2d=4\pi^2(\dfrac{L^2}{12g}+\dfrac{d^2}{g})[/tex]

(\dfrac{4\pi^2}{g})d^2-T^2d+\dfrac{\pi^2L^2}{3g}=0

Put the value of T, L and g into the formula

4.028d^2-6.25d+0.336=0

d = 0.056\ m, 1.496\ m

The value of d is 0.056 cm and 1.496 cm.

(b). Given that,

L = 50-5 = 45 cm

We need to calculate the time period

Using formula of period

T=2\pi\sqrt{\dfrac{l}{g}}

Put the value into the formula

T=2\pi\sqrt{\dfrac{45\times10^{-2}}{9.8}}

T=1.35\ sec

Hence, (a). The value of d is 0.056 cm and 1.496 cm.

(b). The time period is 1.35 sec.

7 0
3 years ago
How does mass effect potential and kinetic energy on a roller coaster?
PilotLPTM [1.2K]
Potential energy is measured by mass * gravity * height. So, the larger the mass on a roller coaster, the more potential energy it has. 

Also, the higher it is, the more potential energy it has. 
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Sections of rivers blocked by landslides, debris, or dams are called?
sergij07 [2.7K]

Answer:

debris basin is you answering.

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2 years ago
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