A 2500 kg mustang car accelerates from rest to 30 m/s in 6 sec.What is acceleration of the mustang car?

A uniform electric field with a magnitude of 5750 N/C points in the positive x direction. Find the change in electric potential

castortr0y [4]

Explanation:

Given that,

Electric field = 5750 N/C

Charge $q=+10.5\times10^{-6}\ C$

Distance = 5.50 cm

(a). When the charge is moved in the positive x- direction

We need to calculate the change in electric potential energy

Using formula of electric potential energy

$\Delta U=-W$

$\Delta U=-F\cdot d$

$\Delta U=-q(E\cdot d)$

Put the value into the formula

$\Delta U=-10.5\times10^{-6}\times5750\times5.50\times10^{-2}$

$\Delta U=-3.32\times10^{-3}\ J$

The change in electric potential energy is $-3.32\times10^{-3}\ J$

(b). When the charge is moved in the negative x- direction

We need to calculate the change in electric potential energy

Using formula of electric potential energy

$\Delta U=-W$

$\Delta U=-F\cdot (-d)$

$\Delta U=-q(E\cdot (-d))$

Put the value into the formula

$\Delta U=-10.5\times10^{-6}\times5750\times(-5.50\times10^{-2})$

$\Delta U=3.32\times10^{-3}\ J$

The change in electric potential energy is $3.32\times10^{-3}\ J$

Hence, This is the required solution.

3 0

4 years ago

6. When adding vectors graphically, the direction and length of each vector must:

Tanzania [10]

Answer:

Not be changed

Option: D

Explanation:

The physical quantity which has both ‘magnitude and direction’ is called vector. These vectors are represented by a line and an arrow, the line represent the magnitude and arrow represent the direction of the physical quantity. The vectors are added and subtracted according to the direction of the vectors.

According to the vector law addition while adding vectors direction and length of the vector is not be changed. If the length of the vector changed the magnitude is also changed while so, while adding vectors length must not be changed.

3 0

3 years ago

Which would be the most reliable source for information about the toxicity of an industrial chemical?

kvasek [131]

A scientific journal article that is peer reviewed. This is because it is more likely not have factual information and sources to that information.

3 0

3 years ago

Read 2 more answers

Balance the following equations: CUCO3+H2SO4- CUSO4+H2O+CO2

Setler79 [48]

Answer:

It is already balanced

Explanation:

It is already balanced

6 0

3 years ago

Select the correct answer from each drop-down menu.

earnstyle [38]

Answer:

a transverse (sort of a plot of a sine or cosine graph, basically)

b longitudinal

c Electromagnetic (an electric wave and a magnetic wave travelling together at right angles to each other)

Explanation:

7 0

3 years ago