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3 years ago

A negative slope on the velocity vs. time graph indicates that the object is not

Physics

2 answers:

Sever21 [200]3 years ago

6 0

False, your velocity would just be in the negative direction.

Svetlanka [38]3 years ago

4 0

Answer: False, I think

Explanation:

Well it depends. Its hard to say without a function of the graph. Given a velocity graph, the first derivative is the acceleration.

Negative slope on a velocity graph means you are going in the negative direction. And over time, your velocity per unit of time is also decreasing. That means we are accelerating in the negative direction

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a solid passes from point A to B by VA=2m/s. AB=1m;m=2kg;F=2N and f=0.5N.Calculate the speed at point B

slava [35]

Answer:

a and E

Explanation:

4 0

3 years ago

Web Spiders and Oscillations All spiders have special organs that make them exquisitely sensitive to vibrations. Web spiders det

Leokris [45]

Answer:

0.037 N/m

Explanation:

The web acts as a spring, so it obeys Hook's law:

$F=kx$ (1)

where

F is the force exerted on the web

k is the spring constant

x is the stretching/compression of the web

In this problem, we have:

- The mass of the fly is $m=15 mg=15\cdot 10^{-6} kg$

- The force exerted on the web is the weight of the fly, so:

$F=mg=(15\cdot 10^{-6}kg)(9.81 m/s^2)=1.47\cdot 10^{-4}N$

- The stretching of the web is

$x=4.0 mm=0.004 m$

So if we solve eq.(1) for k, we find the spring constant:

$k=\frac{F}{x}=\frac{1.47\cdot 10^{-4} N}{0.004 m}=0.037 N/m$

3 0

3 years ago

Which solution will have more gas dissolved in it, A solution under high-pressure or one under low pressure?

gayaneshka [121]

High pressure, because the more pressure, the less volume, so the atoms have to get closer together.

4 0

3 years ago

Has anyone has the answers for Physical Education # 12 cross word and the word search?

rosijanka [135]

Answer:

I FOUND IT!!!

https://quizlet.com/189779132/9-pe-gymnasticsweightlifting-flash-cards/

sry its only the crossword

8 0

3 years ago

Read 2 more answers

A person on a roof throws one ball downward and an identical ball upward at the same speed. The ball thrown downward hits the gr

Alisiya [41]

Answer:C

Explanation:

Given

Both ball are thrown simultaneously with same velocity

Suppose h be the height of roof and u be the initial velocity of balls

For ball thrown from room initial total energy is

$E_1=Potential\ Energy\ +\ kinetic\ energy$

$E_1=mgh+\frac{1}{2}mu^2$

Now this ball potential energy convert to kinetic energy and add up in available kinetic energy to give 100 J at bottom

For second ball, energy at bottom is equal to kinetic Energy of ball

Therefore this energy remains constant and only converts to Potential Energy as ball moves upward

but as soon as ball hit the ground energy will be less than 100 J because first ball has sum of Potential and Kinetic energy .

6 0

3 years ago