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2 years ago

8

Wyatt is moving a box with a mass of 37 kg a distance of 37 meters. Wyatt did 360 J of work in 2 minutes when moving the box. Wh

at was his power output?

1 answer:

Elza [17]2 years ago

7 0

Answer:

the answer should be 550 j because i just did it

Explanation:

all you have to do is add all of them up and get your answer

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What is the density of a 150cm 3 block with a mass of 700 grams?

Vinvika [58]

Answer:

The Density of the block is 4.667g/mL

Explanation:

Given the following data;

Mass of block = 700g

Volume of block = 150cm³

Density = ?

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the equation;

$Density = \frac{mass}{volume}$

Substituting into the equation, we have;

$Density = \frac{700}{150}$

<em>Density = 4.667g/mL</em>

3 0

2 years ago

Solve the given parallel circuit by computing the desired quantities.

Alex Ar [27]

Hope this provides some answers

7 0

2 years ago

Electrons with energy of 25 eV have a wavelength of ~0.25 nm. If we send these electrons through the same two slits (d = 0.16 mm

kupik [55]

Answer:

The spacing is 5.15 μm.

Explanation:

Given that,

Electron with energy = 25 eV

Wave length = 0.25 nm

Separation d= 0.16 mm

Distance D=3.3 m

We need to calculate the spacing

Using formula of width

$\beta=\dfrac{\lambda D}{d}$

Put the value into the formula

$\beta=\dfrac{0.25\times10^{-9}\times3.3}{0.16\times10^{-3}}$

$\beta=5.15\times10^{-6}\ m$

$\beta=5.15\ \mu m$

Hence, The spacing is 5.15 μm.

7 0

2 years ago

Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s (about 100 miles per hour) when the jet stream

emmainna [20.7K]

Answer:

271248.75 N

Explanation:

$\rho$ = Density of air = 1.14 kg/m³

v = Velocity of wind = 45 m/s

A = Area = 235 m²

From Bernoulli's principle we have the relation

$P_1-P_2=\frac{1}{2}\rho v^2\\\Rightarrow \Delta P=\frac{1}{2}1.14\times 45^2\\\Rightarrow \Delta P=1154.25\ Pa$

Force is given by

$F=PA\\\Rightarrow F=1154.25\times 235\\\Rightarrow F=271248.75\ N$

Force due to the jet stream on the roof is 271248.75 N

6 0

2 years ago

Water molecules are made of slightly positively charged hydrogen atoms and slightly negatively charged oxygen

adelina 88 [10]

Answer:

Surface tension.

Explanation:

Water has this thing called surface tension, where the water, most of the time, is hard to split.

A few examples of surface tension in action:

If you spill some water, you can see that they seem to connect together as if they were magnetic.
You can put around 20-30 drops of water on average on a penny. This shows that water has better surface tension than other liquids, like oil, that can the penny can only hold around 10-15.
Lastly, water bugs (which are kind of like mosquitos) can actually stay on top of the water, because they do not break the surface tension of it.

Hope this helps you!

8 0

2 years ago