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3 years ago

Can displacement be in seconds

Advanced Placement (AP)

2 answers:

Naddika [18.5K]3 years ago

6 0

no......................................................................................

bogdanovich [222]3 years ago

5 0

Displacement is a vector quantity, which means that we need to specify a magnitude and direction. So, unlike distance, displacement cares what direction the object is going when it moves between two points. So, in one dimension, displacement can be positive, negative, or zero

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AP CALC QUESTION!! WILL MARK BRAINLIEST (TWO QUESTIONS)

kodGreya [7K]

1. Using washers, the volume is given by the integral

$\displaystyle\pi\int_1^{e^2}((2+2)^2-(\ln x+2)^2)\,\mathrm dx$

$=\boxed{\displaystyle\pi\int_1^{e^2}(20+4\ln x-(\ln x)^2)\,\mathrm dx}$

We're using washers whose centers depend on the value of $x$ , hence we integrate with respect to

2. The area of the given region is given by the integral

$\displaystyle\int_0^2\sin^{-1}\frac x2\,\mathrm dx$

To compute the integral, first consider the substitution $u=\frac x2$ , or $2u=x$ so that $2\,\mathrm du=\mathrm dx$ . Then $x\to0\implies u\to0$ and $x\to2\implies u\to1$ , so the integral is equivalently

$\displaystyle2\int_0^1\sin^{-1}u\,\mathrm du$

Integrate by parts, taking

$f=\sin^{-1}u\implies\mathrm df=\dfrac{\mathrm du}{\sqrt{1-u^2}}$

$\mathrm dg=\mathrm du\implies g=u$

so that

$\displaystyle2\int_0^1\sin^{-1}u\,\mathrm du=2\left(u\sin^{-1}u\bigg|_0^1-\int_0^1\frac u{\sqrt{1-u^2}}\,\mathrm du\right)$

$\sin^{-1}0=0$ and $\sin^{-1}1=\frac\pi2$ , so the area is

$\displaystyle\pi-2\int_0^1\frac u{\sqrt{1-u^2}}\,\mathrm du$

For the remaining integral, substitute $w=1-u^2$ , so that $\mathrm dw=-2u\,\mathrm du$ . Then $u\to0\implies w\to1$ and $u\to1\implies w\to0$ :

$\displaystyle\pi-\int_0^1\frac{\mathrm dw}{\sqrt w}$

(notice that the integral is improper)

$\displaystyle\pi-\lim_{t\to0^+}2\sqrt w\bigg|_t^1$

$\displaystyle\pi-2\left(1-\lim_{t\to0^+}\sqrt t\right)=\boxed{\pi-2}$

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3 years ago

Why amanda wanted to be a Rapunzel?

irina [24]

Amanda wants to be a Rapunzel because wants to enjoy the freedom that Rapunzel enjoyed in calmness inside the tower. She also says that she would never let her bright her down to help somebody get in the tower and dominate her.

Explanation:

<em>hope it helps ^^</em>

6 0

3 years ago

Read 2 more answers

Use the drop-down tool to select whether the scenario involves a doctor breaking the law or violating an

iren [92.7K]

Answer: 1. Breaking the law

2. Violating ethical standards

Explanation:

1. A doctor gives out confidential patient health information to friends at a dinner party.

Here, the doctor is breaking the law. Giving out someone's confidential information without the consent of the person is wrong. The doctor can be jailed for doing such as he is breaking the law.

2. A doctor withholds information from a patient about the patient's health because he is worried about how

the patient might react.

This is a violation of ethical standards. Ethical standards are principles that underlies moral values. The doctor isn't meant to withold the information from the patient as the patient has the right to know what's happening regarding his or her health.

7 0

3 years ago

The US Government believed they were making Native American tribes more successful through assimilation. How has the perception

nirvana33 [79]

Assimilation, in anthropology and sociology, the process whereby individuals or groups of differing ethnic heritage are absorbed into the dominant culture of a society. ... As such, assimilation is the most extreme form of acculturation.

Hope this helps :)

3 0

3 years ago

Describe the first interaction that must occur between the R7 precursor cell and the R8 cell for the R7 precursor to differentia

Marizza181 [45]

Answer:

the eye contains 800 photoreceptor sensory units called ommatidia, these contain 22 cells, 8 of which are photosensitive and have been called R cells, currently 8 types have been described that are listed from 1 to 8 with the letter R, during the development of the ommatidia is expressed by the B088 proteins and through a reaction with the RTKs ligand of R8 induction occurs to the formation of the R7 precursor

5 0

4 years ago