Ask question

Ask question

All categories

1 month ago

5

Which graph represents the motion of an object traveling with a positive velocity and a negative acceleration?

2 answers:

Keith_Richards [3.2K]1 month ago

6 0

I think the right choice according to the illustration above is the second option. The graph demonstrating the motion of an object moving with a positive velocity and a negative acceleration is graph 2, which shows a curve that increases in y as x rises. I hope this resolves the question.

Yuliya22 [3.3K]1 month ago

5 0

Answer
graph 2

Explanation
Velocity refers to the speed at which displacement changes.
Velocity = (change in displacement)/(change in time)
In graph 2, the slope of the curve is positive, indicating a positive velocity.
Acceleration indicates how velocity varies.
The incline of the same curve (graph 2) is diminishing. This suggests that the velocity is falling, signifying negative acceleration.

You might be interested in

If the wire is replaced by an infinite current sheet with density Js = 0.40 A/m, what would be the magnetic flux (in T · m2) thr

Sav [3153]

Answer:

Clarification: $\phi _{B} =0.855 T-m^{-2}$

Considering the following data the density of the current sheet is 0.40 A/m

The length a = 0.27 m

and the width b = 0.63 m

For an infinite sheet, the magnetic field is described as

The magnetic flux is given as

$B = \mu _{O}J$

magnetic flux =

$\phi _{B} = BA$

$= \mu _{O}Jab$

$= 4\pi *0.40*0.27*0.63$

$\phi _{B} =0.855 T-m^{-2}$

6 0

1 month ago

A wave travels through a medium because

Maru [3345]

if you want the short reply, the answer is B

5 0

1 month ago

Read 2 more answers

A plasma is a gas of ionized (charged) particles. When plasma is in motion, magnetic effects "squeeze" its volume, inducing inwa

Softa [3030]

Answer:

a

The density of volume charge is $\rho = nq$

b

The density of surface charge is $\sigma = n^{\frac{2}{3} } q$

Explanation:

The question states that

The radius measures R

The length is L

The speed is v

The ion count per unit volume is n

The charge per ion is q

The surface thickness of the cylinder is $n^{\frac{1}{3} }$

The volume charge density is mathematically expressed as

$\rho = nq$

The surface charge density is mathematically expressed as

$\sigma = \rho n^{\frac{1}{3} }$

substituting for $\rho$

$\sigma = n * n^{\frac{1}{3} } q$

$\sigma = n^{\frac{2}{3} } q$

5 0

1 month ago

50 POINTS! A Boy throws a ball horizontally a distance of 22m downrange from the top of a tower that is 20.0m tall. What is his

Softa [3030]

At time $t$ , the ball's horizontal and vertical velocities can be represented as

$v_x=v_{xi}$

$v_y=v_{yi}-gt$

However, since the ball is thrown horizontally, we have $v_{yi}=0$ . The horizontal and vertical positions at time $t$ are

$x=v_{xi}t$

$y=20.0\,\mathrm m-\dfrac g2t^2$

The ball travels a distance of 22 m horizontally from the throw point, thus

$22\,\mathrm m=v_{xi}t$

With this, we determine that the time for the ball to reach the ground is

$t=\dfrac{22\,\rm m}{v_{xi}}$

When it touches down, $y=0$ and

$0=20.0\,\mathrm m-\dfrac{9.8\frac{\rm m}{\mathrm s^2}}2\left(\dfrac{22\,\rm m}{v_{xi}}\right)^2$

$\implies v_i=v_{xi}=11\dfrac{\rm m}{\rm s}$

7 0

1 month ago

A vehicle ___________ occurs when the driver begins to back up and is unaware that a person is behind the vehicle.

Maru [3345]

I'm unaware of the term accident?

6 0

2 months ago

Read 2 more answers