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EastWind [94]
3 years ago
13

3. How much power is required to pull a sled if you use60j of work in secound?​

Chemistry
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

The answer is 60W

Power = Work done/ time

time = 1 second

Work done = 60J

Power = 60/1

= 60W

Hope this helps.

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Please match the orbital type with the correct number of orbitals
saul85 [17]
Hi there!

p = e-3
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Hope that helps!
Brady
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3 years ago
Susan uses Doppler radar to analyze wind patterns in five cities and determine how windy it is. Which statement describes how sh
andrezito [222]

Answer

Susan can process wind speed data from different regions.

Explanation

A Doppler radar is used in weather forecasting in measuring the direction and speed of objects such as drops of precipitation. It determines if the movement occurring in the atmosphere is horizontally towards or way from the radar. Susan can obtain velocity data about objects at a distance which might be water droplets thus be able to predict a coming weather


5 0
3 years ago
Describe an experiment to determine the density of a liquid
Tju [1.3M]

Answer:

Take the measuring cylinder and measure its mass, in grams, as accurately as possible. Take the measuring cylinder off the balance and add the water carefully. Put the measuring cylinder back on the balance. Measure and record the new mass . Repeat the procedure,  recording the volume and total mass, until the measuring cylinder is full. Then, for each volume calculate the mass of the liquid alone.Repeat steps 1 to 3  Draw a graph of mass of liquid against volume .  Calculate the density of each liquid from the gradient of its graph line.

Explanation:

5 0
2 years ago
How many iron atoms are in 0.32 mol of Fe2031? 3.9x 1023 jron atoms O 3.9 iron atoms O 6.02 x 1023 iron atoms 1.9 x 1023 iron at
Gennadij [26K]

Answer: 3.9\times 10^{23} iron atoms

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

1 molecule of [tex]Fe_2O_3 contains= 2 atoms of iron

1 mole of [tex]Fe_2O_3 contains=2\times 6.023\times 10^{23}=12.05\times 10^{23}  atoms of iron

thus 0.32 moles of Fe_2O_3 contains=\frac{12.05\times 10^{23}}{1}\times 0.32=3.9\times 10^{23}  atoms  of iron

Thus the sample would have 3.9\times 10^{23} iron atoms.

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