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Harrizon [31]
2 years ago
9

A battery does work in moving charge around a circuit i.e. sustaining a current through the circuit. To illustrate this point, c

onsider a resistor with a voltage VVV across it and a current III flowing through it.
Physics
1 answer:
snow_tiger [21]2 years ago
6 0

the work W done on the charge in terms of q, V, and/or I. is W =qV.

question was incomplete, the complete question is -  

Part A Focus on a single charge, q, passing through the resistor. Find the work W done on the charge by the electric field in the resistor. Express the work W done on the charge in terms of q, V, and/or I.

<h3>What is Work?</h3>

Transferring energy into an item to cause some displacement is what is referred to as work. The ability to perform tasks is referred to as energy. The work is consistently the same. Kinetic and potential energy are two examples of the various forms of energy.

Work done to move the charge across the potential difference is given as

W =qΔV

here the magnitude of charge is given as

charge = q

potential difference is given as

potential difference = V

so work done is given as

W =qV

to learn more about work go to -

brainly.com/question/25573309

#SPJ4

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If a rock is dropped with a weight of 50kg and friction due to air resistance produces a force of 98N, what is the net force in
bearhunter [10]

Answer:

The net force is 392N, pointing down.

Explanation:

The net force is the sum of all forces acting on the rock, namely the gravity ("+" acting downward) and the friction force due to air resistance ("-" acting upward):

F_{net} = F_g - F_{air}\\F_{net} = m\cdot g - F_{air} = 50kg\cdot 9.8\frac{m}{s^2}-98N= (490-98)N=392N

The net force is 392N and pointing down (positive)/

8 0
4 years ago
A tank having a volume of 0.85 m 3 initially contains water as a two-phase liquid-vapor mixture at 260 o C and a quality of 0.7.
Keith_Richards [23]

Answer:=14,160 kJ

Explanation: Let m1 and m2 be the initial and final amounts of mass within the tank, respectively. The steam properties are listed in the table below

Specific Internal SpecificTemp Pressure Volume Energy Enthalpy Quality Phase

C MPa m^3/kg kJ/kg kJ/kg

1 260 4.689 0.02993 2158 2298 0.7 Liquid Vapor Mixture

2 260 4.689 0.0422 2599 2797 1 Saturated Vapor

The mass initially contained in the tank is m1 = V/v1

m1 =0.85 m^3 /0.02993 m^3 /kg

= 28.4 kg

The mass finally contained in the tank is

m2 =V2/v

= 0.85 m^3 /0.0422 m^3 /kg

= 20.14 kg

The heat transfer is then

Qcv = m2u2 − m1u1 − he(m2 − m1)

Qcv = (20.14)(2599) − (28.4)(2158) − (2797)(20.14 − 28.4) = 14,160 kJ

4 0
3 years ago
A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, it rotates 46.0 times befor
BlackZzzverrR [31]

Answer:

The angular acceleration of the centrifuge is -231.74 rad/s².

Explanation:

Given that,

Angular speed = 3500 rev/min = 366 rad/s

We need to calculate the angular displacement

Using formula of angular displacement

\theta=2\pi n

Put the value into the formula

\theta=2\pi\times46

\theta=289.02\ rad

We need to calculate the angular acceleration

Using equation of motion

\omega_{f}^2=\omega_{i}^2+2\alpha\theta

\alpha=\dfrac{\omega_{f}^2-\omega_{i}^2}{2\theta}

\alpha=\dfrac{0-(366)^2}{2\times289.02}

\alpha=-231.74\ rad/s^2

Hence, The angular acceleration of the centrifuge is -231.74 rad/s².

3 0
3 years ago
Please help! the first person to answer this correctly will get a brainlist
gizmo_the_mogwai [7]

Answer:

that is true

Explanation:

4 0
3 years ago
Read 2 more answers
on the surface of planet x, a body with a mass of 10 kilograms weighs 40. newtons. the magnitude of the acceleration due to grav
VARVARA [1.3K]
Based on the Newton's second law of motion, the value of the net force acting on the object is equal to the product of the mass and the acceleration due to gravity. If we let a be the acceleration due to gravity, the equation that would allow us to calculate it's value is,

      W = m x a

where W is weight, m is mass, and a is acceleration. Substituting the known values,

    40 kg m/s² = (10 kg) x a

Calculating for the value of a from the equation will give us an answer equal to 4. 

ANSWER: 4 m/s². 
7 0
4 years ago
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