All categories

3 years ago

I need help with finding the rest of the missing things..like the current (I), resistance, and voltage (v)

Physics

1 answer:

Finger [1]3 years ago

8 0

The total current is 1.5 A.
You know how much goes through the two bulbs.
The rest goes through the single bulb.

The single bulb is connected to the full battery voltage.

The resistance of the single bulb is V/I. (It turns out to be the same as the other 2 bulbs.)

The voltage across

You might be interested in

Which would ultimately cause the armature in an electric motor to spin?

malfutka [58]

It would be the electromagnet because that is how it spins

4 0

4 years ago

Read 2 more answers

When the speed of electrons striking the anode of an x-ray tube increases, the _____ of the emitted x-rays increases.

Yuki888 [10]

Cathody Ray electrons striking the anode of an x-ray tube increases

5 0

3 years ago

Read 2 more answers

Ques

Amanda [17]

Answer:

When a particle or a system of particles move in a system where no external force acts, then the total linear momentum of the particle system remains constant.

Explanation:

Given data:

Total mass of the skateboarder, $m_{1} = 70 \ kg$

Mass of the friend, $m_{2} = 50 \ kg$

Initial velocity of the skateboarder, $u_{1} = 3 \ m/s$

Initial velocity of the the friend, $u_{2} = 0$

Let the new velocity of the skateboarder when his friend jumps be $v$ .

From the conservation law of linear momentum,

$m_{1}u_{1} + m_{2}u_{2} = (m_{1} + m_{2})v$

$70 \times 3 + 50 \times 0 = (70 + 50)v$

$\Rightarrow \ v &= 1.75 \ m/s.$

4 0

4 years ago

Is it safe to drive your 1600-kg car at speed 34 m/s around a level highway curve of radius 190 m if the effective coefficient o

adoni [48]

Answer:

It is unsafe

Explanation:

v = Velocity of car = 34 m/s

r = Radius of turn = 190 m

$\mu$ = Coefficient of static friction = 0.5

m = Mass of car = 1600 kg

g = Acceleration due to gravity = 9.81 m/s²

The centripetal force is given by

$F_c=m\frac{v^2}{r}\\\Rightarrow F_c=1600\frac{34^2}{190}\\\Rightarrow F_c=9734.73\ N$

The frictional force is given by

$F_f=\mu mg\\\Rightarrow F_f=0.5\times 1600\times 9.81\\\Rightarrow F_f=7848\ N$

If the centripetal force is greater than the frictional force then the car will slip which makes it unsafe.

Here, the centripetal force is greater than the frictional force which makes it unsafe to drive it at that speed.

4 0

3 years ago

What did Rutherford’s model of the atom include that Thomson’s model did not have?

Leona [35]

Rutherford tested Thomson'shypothesis by devising his "gold foil" experiment. Rutherford was forced to discard the Plum Pudding modeland reasoned that the only way the alpha particles could be deflected backwards was if most of the mass in an atom was concentrated in a nucleus.

6 0

3 years ago

Read 2 more answers