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4 years ago

lonic bonds are strong enough to cause all ionic compounds to be ___________ at room temperature. Plz help i need this

Physics

1 answer:

Mice21 [21]4 years ago

3 0

Answer:

because ionic bonds are strong, a lot of energy is needed to break them. They are all solids at room temperature.

Explanation:

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1 year ago

Assume that, as the battery wears out, the voltage decreases at 0.03 volts per second and, as the resistor heats up, the resista

liraira [26]

Answer:

$\frac{dI}{dt} =-3*10^-^4amps/sec$

Explanation:

From the question we are told that

Voltage decreases at $\frac{dv}{dt} =-0.03volts/sec$

Resistance increase at $\frac{dR}{dt}=0.02ohms /sec$

Resistance at $R=100ohms$

Current at $I=0.02amps$

Generally the equation for ohms law is mathematically represented as

$V=IR$

Therefore

$\frac{dV}{dt} =R\frac{dI}{dt} +I\frac{dR}{dt}$

Generally making $\frac{dI}{dt}$ subject of the formula in the above equation mathematically gives

$\frac{dV}{dt} =R\frac{dI}{dt} +I\frac{dR}{dt}$

$R\frac{dI}{dt} = \frac{dV}{dt} -I\frac{dR}{dt}$

$\frac{dI}{dt} =\frac{1}{R} (\frac{dV}{dt} -I\frac{dR}{dt})$

Therefore

$\frac{dI}{dt} =\frac{1}{100}((-0.03) -(0.02)*(0.02))$

Generally it is given that the change in current is

$\frac{dI}{dt} =-3*10^-^4amps/sec$

8 0

3 years ago

Tarzan swings on a 36.0 m long vine initially inclined at an angle of 31.0◦ with the vertical. The acceleration of gravity if 9.

aleksandrvk [35]

Answer:

v = 10 m/s

Explanation:

Given,

Length of the vine, l = 36 m

Angle of inclination = 31.0◦ with the vertical

acceleration due to gravity = 9.81 m/s²

Using Conservation of energy

KE = PE

$\dfrac{1}{2} mv^2 = m g h$

$v = \sqrt{2gh}$

$v = \sqrt{2 g l(1-\cos \theta)$

$v = \sqrt{2\times 9.81\times 36 \times (1-\cos 31^0)$

v = 10 m/s

Hence, the speed of the swing is equal to 10 m/s

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3 years ago

valentinak56 [21]

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3 years ago

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What are the things ships tie up to at dock?

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Cleats Chicks Bits and Bollards. Hope this helps

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4 years ago

lonic bonds are strong enough to cause all ionic compounds to be ___________ at room temperature. Plz help i need this​

lonic bonds are strong enough to cause all ionic compounds to be ___________ at room temperature. Plz help i need this