Objects that transmit some light and reflect/absorb the rest of the light, like stained glass, are

Physics

1 answer:

11111nata11111 [884]4 years ago

3 0

You are correct it is translucent because opaque let’s no light through but transparent lets almost all light through

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Calculate the total energy transferred when 200 g of ice cubes at 0°C are changed to steam at 100°C.

uranmaximum [27]

Answer:

$604000\ \text{J}$

Explanation:

m = Mass of ice = 200 g

$\Delta T$ = Temperature change of water = $(100-0)^{\circ}\text{C}$

c = Specific heat capacity of water = 4200 J/kg °C

$L_f$ = Specific latent heat of fusion = 340 kJ/kg

$L_v$ = Specific latent heat of vaporisation = 2260 kJ/kg

Heat required to convert ice to water = $mL_f$

Heat required to raise the temperature of water to boiling point = $mc\Delta T$

Heat required to convert water to steam = $mL_v$

Total heat required

$q=mL_f+mc\Delta T+mL_v\\\Rightarrow q=m(L_f+c\Delta T+L_v)\\\Rightarrow q=0.2(340\times 10^3+4200(100-0)+2260\times 10^3)\\\Rightarrow q=604000\ \text{J}$

Heat required to convert the given amount of ice to steam at the required temperature is $604000\ \text{J}$ .

7 0

3 years ago

When two plates move together, lithosphere is ________. not changed destroyed created?

mote1985 [20]

I believe the answer is the second option. When two plates move together, lithosphere is destroyed. The lithosphere is the part of the ground that includes the uppermost mantle and the crust. It is where plate tectonics are situated. When these move, surely the lithosphere is affected and is changed.

4 0

4 years ago

A 46.5-kg ball has a momentum of 57.2 kg m/s. What is the ball's speed?

Serhud [2]

Answer:

1.23 m/s

Explanation:

p=mv

57.2 = 46.5v

v= 57.2/46.5

v= 1.23

If you want to verify your answer, just insert the value of v in the equation.