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3 years ago

The source of heat for a (an) _____ system is electricity

Physics

1 answer:

marshall27 [118]3 years ago

3 0

Electric Heating systems use electricity as a source of heat.

<u>Explanation: </u>

Each heater consists of an electric resistor, which the heating element in it. The process involved is Joule Heating. It is the phenomenon in which, passage of electric current produces heat. Heat is generated when the electrons from the current and the positive ions of the conductor start interaction.

The presence of voltage difference makes an electric fields, which in turn accelerates the charges present in the conductors. When they collide with ions of conductor, heat gets generated, and emitted out, which we use for heating purposes.

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Help me and get points..

Rufina [12.5K]

Answer:

B) Depends on launch speed.

Explanation:

This is true when considering the basketball player in a given basketball game. The speed at which the player jumps up is a strong factor which determines the acceleration of his acceleration. The direct co-relation show that, speed and acceleration of the basketball player are interrelated.

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3 years ago

Why do women typically tend to have slightly greater stability than men?

m_a_m_a [10]

Answer:

Explanation:

I figured it sounded more accurate

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2 years ago

I need help with this question. Anyone?

cluponka [151]

The closest answer i would go with is b, I'm not completely sure because I'm not sure what the question actually means because there could be any meaning

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3 years ago

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A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You push on the 1.0-kg cart with a constant

Margarita [4]

Answer:

a) $W=0.8J$

b) $d_t=0.20m$

c) $\triangle K.E=0.267J$

Explanation:

From the question we are told that:

Mass of cart 1 $M_1=1.0kg$

Mass of cart 1 $M_2=0.05kg$

Force on cart 1 $F_1=4.0N$

Push Distance of cart 1 $d_1=0.20m$

Slide Distance of cart 1 $d_1'=0.35m$

Generally the equation for work-done is mathematically given by

$W=f*d\\W=4*0.20\\W=0.8J \\$

The systems center of mass moved a net totally of (while being pushed)

Mass 1 =0.20m

Mass 2=0

Therefore

$d_t=d_1+d_2$

$d_t=0.20+0$

$d_t=0.20m$

Since work-done is equal to K.E energy of cart 1

Therefore

$W=1/2mv^2$

$V_1=\sqrt{\frac{W}{1/2m}}$

$V_1=\sqrt{\frac{0.8}{1/2(1)}}$

$V_1=1.264$

Therefore Kinetic energy before collision is

$K.E_1=1/2mv^2$

$K.E_1=1/2*1*1.264^2$

$K.E_1=0.768$

Generally from the equation for conservation of momentum the Velocity of cart 2 is mathematically given by

$v_2=\frac{m_1V_1}{m_1+m_2}$

$v_2=\frac{1*1.264}{1+0.5}$

$V_2=0.842m/s$

Therefore the final K.E is mathematically given by

$K.E_2=(1/2)(m_1+m_2)V_2^2$

$K.E_2=1/2*(1.5)(0.842)^2$

$K.E_2=0.531J$

Generally the Change in K.E is mathematically given by

$\triangle K.E=K.E_1-K.E_2$

$\triangle K.E=0.798-0.531$

$\triangle K.E=0.267J$

Therefore the will force change the kinetic energy of the system's center of mass by

$\triangle K.E=0.267J$

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3 years ago

As concentration increases by a tenth,what happens to the pH?

charle [14.2K]

As concentration of a solution, increases by a tenth, the pH will become basic. The pH scale measures how acidic or basic the substance is, where 0 is the most acidic due to increase in H+ in a concentration, 14 is the most basic because of low H+ concentration and 7 is considered neutral with equal number of H+ and OH- ions.

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3 years ago

Read 2 more answers