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3 years ago

What kind of energy do u use for cooking and heating

2 answers:

6 0

Thermal energy is used to cook food. Thermal energy is heat. It's converted from either electrical potential energy or chemical potential energy, depending on the cooking appliance. An electric stove converts electric potential energy to thermal energy.

cricket20 [7]3 years ago

3 0

I believe gas, however some use electricity for that.

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How would the products of electrolysis be different is a solution of zinc chloride was used instead of molten zinc chloride?

kozerog [31]

Answer:

The electrolysis of zinc chloride shows how an ionic salt will conduct electricity when molten, but not when solid.

Explanation:

hope this helps!!!! GOOD LUCK!!!!

3 0

3 years ago

The first element on the periodic table is<br> Answer here

Gwar [14]

Answer:

Hydrogen

Explanation:

8 0

3 years ago

Read 2 more answers

What are the units of measurement for length

Sonbull [250]

Inches, feet, yards, meters

8 0

3 years ago

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This grandfather clock, made entirely of Legos, has a 0.625 m long simple pendulum. What is the period of the pendulum? (include

PSYCHO15rus [73]

1. 1.59 s

The period of a pendulum is given by:

$T=2\pi \sqrt{\frac{L}{g}}$

where L is the length of the pendulum and g the gravitational acceleration.

In this problem,

L = 0.625 m

g = 9.81 m/s^2

Substituting into the equation, we find

$T=2\pi \sqrt{\frac{(0.625 m)}{9.81 m/s^2}}=1.59 s$

2. 54,340 oscillations

The total number of seconds in a day is given by:

$t=24 h \cdot 60 min/h \cdot 60 s/min =86,400 s$

So in order to find the number of oscillations of the pendulum in one day, we just need to divide the total number of seconds per day by the period of one oscillation:

$N=\frac{t}{T}=\frac{86,400 s}{1.59 s}=54,340$

3. 0.842 m

We want to increase the period of the pendulum by 16%, so the new period must be

$T'=T+0.16T=1.16 T = 1.16 (1.59 s)=1.84 s$

Now we can re-arrange the equation for the period of the pendulum, using T=1.84 s, to find the new length of the pendulum that is required to produce this value of the period:

$L=g(\frac{T}{2\pi})^2=(9.81 m/s^2)(\frac{1.84 s}{2\pi})^2=0.842 m$

6 0

3 years ago

if a cube that has a length height and width of 4cm is broken down into 8 cubes of equal size what is the surface area of the 8c

Monica [59]

Answer:

144 cm²

Explanation:

In dividing to 8 cubes the side of a cube will be 2 cm.

It can be taken by volume as

4×4×4 = 8×(l×l×l) where l = length of the cube required.

So surface area of a small cube is 6×(2×2) = 24 cm²

Six such cubes will have a surface area of 144 cm²

6 0

3 years ago