Can someone help me please?

In a series circuit of two resistors, the resistors have the same __________; in a parallel circuit of two resistors, the resist

bekas [8.4K]

Answer:

current, voltage

Explanation:

Resistors can both be connected in series and parallel configuration. when a resistor is connected serially, the same amount of current flows through each resistor element but the voltage across each resistor is determined by the magnitude of the resistance of each resistor. However, in a parallel connection, the same voltage is applied across each resistor but different current.

8 0

4 years ago

What human body feature allows the respiratory system to take in oxygen

alexandr1967 [171]

The answer to your question is: the lungs.

The lungs allow the respiratory system to take in oxygen.

(Hope this helps!)

8 0

3 years ago

1 A football player runs directly down the field for 35 m before turning to the right at

ehidna [41]

Answer:

The magnitude of displacement is 56.54 m

The direction of the displacement is along the line joining the two vectors.

Explanation:

The resultant displacement is always the line joining the initial and final position of the vectors.

As in figure,

the vector AB = 35 m

the vector BC = 15 m

the angle between AB and AC = 25' (minutes)

the resultant vector AC = ?

The resultant vector is given by the formula

AC² = AB² + BC² + 2 AB BC Cos θ

Substituting the values in the equations,

AC² = 35² + 15² + 2 x 35 x 15 x Cos 25'

= 56.54

Therefore, the magnitude of displacement is 56.54 m

The direction of the displacement is along the line joining the two vectors.

7 0

3 years ago

Read 2 more answers

A sanding disk with rotational inertia 3.8 x 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of magnit

Elis [28]

Answer:

(a) Angular momentum of disk is $1.343\, \frac{kg.m^{2}}{s}$

(b) Angular velocity of the disk is $353\frac{rad}{s}$

Explanation:

Given

Rotational inertia of the disk , $I=3.8\times 10^{-3}kg.m^{2}$

Torque delivered by the motor , $\tau =17N.m$

Torque is applied for duration , $\Delta t=79ms=0.079s$

(a)

Magnitude of angular momentum of the disk = Angular impulse produced by the torque

$\therefore L=\tau \Delta t=17\times 0.079\frac{kg.m^{2}}{s}$

=> $L=1.343\, \frac{kg.m^{2}}{s}$

Thus angular momentum of disk is $1.343\, \frac{kg.m^{2}}{s}$

(b)

Since Angular momentum , $L=I\omega$

where $\omega$ = Angular velocity of the disk

$=>\omega =\frac{L}{I}=\frac{1.343}{3.8\times 10^{-3}}\frac{rad}{s}$

$\therefore \omega =353\frac{rad}{s}$

Thus angular velocity of the disk is $353\frac{rad}{s}$

5 0

3 years ago

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

zzz [600]

Answer:

a

The volume charge density is $\rho = nq$

b

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

Explanation:

From the question we are told that

The radius is R

The length is L

The velocity is v

The number of ions per unit volume is n

The charge is q

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

The volume charge density is mathematically represented as

$\rho = nq$

The surface charge density is mathematically represented 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

3 years ago