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Lina20 [59]
3 years ago
5

calculate the currrent passing acrooss a bulb if it has a resistane of 15 ohms and a potentinal difference of 6v is applied acro

ss it
Physics
1 answer:
lawyer [7]3 years ago
4 0

V = IR

6 V = I × 15 Ohms

I = 6 V : 15 Ohms

I = 0,4 A

#LearnWithEXO

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If the volume of a container of gas is reduced, what will happen to the pressure inside the container?.
AfilCa [17]

Answer:

The pressure of the gas will increase

Explanation:

When gas is put into a container, for example, a balloon, the gas expands to fill the space it can occupy. Since gas is not a solid or a liquid, its particles are all over the place - they are constantly moving and vibrating. As such, when too much gas is blown into a balloon, it will pop. So, when the volume of the container decreases, the pressure of the gas will increase the smaller it gets. Vice versa, the greater the space, the less pressure that will be present in the container.

7 0
2 years ago
Metabolic syndrome is characterized by all of the following EXCEPT
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The term metabolic syndrome defines a group of risk factors which determine your risk for health issues such as heart disease, a stroke and diabetes. Abdominal weight gain (a), elevated blood fat (c) and insulin resistance (d) are all characteristics which will increase your risk of the above health issues. The only characteristic that will decrease your risk of heart disease, diabetes and a stroke is reduced blood pressure (b). If you have any of these negative characteristics, it is important to work at reducing them; thereby, improving your health.



3 0
3 years ago
A wheel of moment of inertia of 5.00 kg∙m2 starts from rest and accelerates under a constant torque of 3.00 N∙m for 8.00 s. What
Strike441 [17]

Answer:

The wheel's rotational kinetic energy is 57.6 J.

Explanation:

Given that,

Moment of inertia = 5.00 kg.m²

Torque = 3.00 N.m

Time = 8.00 s

We need to calculate the angular acceleration

Using formula of the torque act on the wheel

\tau=I\alpha

\alpha=\dfrac{\tau}{I}

Where, I = moment of inertia

\alpha = angular acceleration

\tau = torque

Put the value into the formula

\alpha=\dfrac{3.00}{5.00}

\alpha=0.6\ rad/s^2

We need to calculate the final angular velocity

Initially wheel at rest so initial velocity  is zero.

Using formula of angular velocity

\alpha=\dfrac{\omega_{f}-\omega_{i}}{t}

\omega_{f}=\omega_{i}+\alpha t

Put the value into the formula

\omega_{f}=0+0.6\times8.00

\omega_{f}=4.8\ rad/s

We need to calculate the rotational kinetic energy of the wheel

Using formula of the rotational kinetic energy

K.E_{rot}=\dfrac{1}{2}I\omega^2

K.E_{rot}=\dfrac{1}{2}\times5.00\times(4.8)^2

K.E_{rot}=57.6\ J

Hence, The wheel's rotational kinetic energy is 57.6 J.

6 0
3 years ago
Which one is it plzz help
Damm [24]

Answer:

Stayed the same

Explanation:

Potential energy is a function of mass, gravity and height relative to a reference level. If we take as the reference level the soil, this is the level where the potential energy is zero. Since in problem it is mentioned that the track is flat, this means that there are no height changes with respect to the reference level, therefore we can say that the potential energy remains unchanged.

Ep = m*g*h

where:

m = mass [kg]

g = gravity [m/s^2]

h = elevation [m]

6 0
3 years ago
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