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Monica [59]
3 years ago
8

In the following circuit, the supplied voltage is 1.5 volts and the resistor value is 2 ohms. Use Ohm's law to determine the cur

rent in the circuit.
3.0 amps
0.75 amps
3.5 amps
1.3 amps
Physics
2 answers:
attashe74 [19]3 years ago
7 0

Answer:

0.75 Amps

Explanation:

I had this question and this was right

RSB [31]3 years ago
5 0

Answer:

Current, I = 0.75 amps

Explanation:

Given that

Supplied voltage, V = 1.5 volts

Value of resistor, R = 2 ohms

Ohm's law to used to determine the current in the circuit. Mathematically, it is given by :

V = I R

I = current flowing in the circuit

I=\dfrac{V}{R}

I=\dfrac{1.5\ V}{2\ ohms}

I = 0.75 amps

So, the current flowing in the circuit is 0.75 amps. Hence, the correct option is (b) ''0.75 amps''.

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Which equation represents mass-energy equivalence? E = m2c E = mc2 E = (mc)2 E = mc
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Einstein's energy mass equivalence relation say that if the whole given mass is converted to energy then it would be

E = mc^2

where

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c = speed of light in m/s

this is the origination of quantum physics and by this formula we can relate the dual nature of light and particle

So correct relation above will be

E = mc^2

4 0
3 years ago
Read 2 more answers
A 0.5 m diameter wagon wheel consists of a thin rim having a mass of 7 kg and six spokes, each with a mass of 1.2 kg. 1.2 kg 7 k
Arte-miy333 [17]

Explanation:

It is given that,

Mass of the rim of wheel, m₁ = 7 kg

Mass of one spoke, m₂ = 1.2 kg

Diameter of the wagon, d = 0.5 m

Radius of the wagon, r = 0.25 m

Let I is the the moment of inertia of the wagon wheel for rotation about its axis.

We know that the moment of inertia of the ring is given by :

I_1=m_1r^2

I_1=7\times (0.25)^2=0.437\ kgm^2

The moment of inertia of the rod about one end is given by :

I_2=\dfrac{m_2l^2}{3}

l = r

I_2=\dfrac{m_2r^2}{3}

I_2=\dfrac{1.2\times (0.25)^2}{3}=0.025\ kgm^2

For 6 spokes, I_2=0.025\times 6=0.15\ kgm^2

So, the net moment of inertia of the wagon is :

I=I_1+I_2

I=0.437+0.15=0.587\ kgm^2

So, the moment of inertia of the wagon wheel for rotation about its axis is 0.587\ kgm^2. Hence, this is the required solution.

4 0
3 years ago
PLS HELP 30 POINTS IF U HELP
USPshnik [31]

Answer:

its D so yeah.........

Explanation:

tell me if it's wrong

8 0
2 years ago
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liberstina [14]
The slope represents the acceleration
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Projectiles that strike objects are good examples of inelastic collisions. A 0.1 kg nail driven by a gas powered nail driver col
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In an inelastic collision, only momentum is conserved, while energy is not conserved.

1) Velocity of the nail and the block after the collision
This can be found by using the total momentum after the collisions:
p_f=(m+M)v_f=4.8 kg m/s
where
m=0.1 kg is the mass of the nail
M=10 kg is the mass of the block of wood
Rearranging the formula, we find v_f, the velocity of the nail and the block after the collision:
v_f= \frac{p_f}{m+M}= \frac{4.8 kg m/s}{0.1 kg+10 kg}=  0.48 m/s

2) The velocity of the nail before the collision can be found by using the conservation of momentum. In fact, the total momentum before the collision is given only by the nail (since the block is at rest), and it must be equal to the total momentum after the collision:
p_i = mv_i = p_f
Rearranging the formula, we can find v_i, the velocity of the nail before the collision:
v_i =  \frac{p_f}{m}= \frac{4.8 kg m/s}{0.1 kg}=48 m/s
6 0
3 years ago
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