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3 years ago

5

What is the total mass of the object if the scale is balanced? (The black triangles show the location of the riders.) Do NOT inc

lude units with your answer. (Units would be grams). PLEASE HELP

1 answer:

wel3 years ago

6 0

If I'm understanding the picture, it looks like the riders add up to <em>117.8</em> .

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Can someone list 6 advantages of renewable energy.

igor_vitrenko [27]

Answer:

Solar energy, Wind energy, Hydro energy, Tidal energy, Geothermal energy, Biomass Energy.

Explanation:

I hope that it helps you...

4 0

3 years ago

A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harm

Marina86 [1]

Answer:

$v(0)=2m/s$

Explanation:

The instantaneous velocity of a point mass that executes a simple harmonic movement is given by:

$v(t)=\omega *A*cos(\omega t + \phi)$

Where:

$\omega=Angular\hspace{3}frequency\\A=Amplitude\\\phi=Initial\hspace{3}phase$

Express the amplitude in meters:

$10cm*\frac{1m}{100cm} =0.1m$

The angular frequency can be found using the next equation:

$\omega=\sqrt{\frac{k}{m} }$

Using the data provided:

$\omega=\sqrt{\frac{400}{1} } =20$

At the equilibrium position:

$\phi=0$

$v(0)=20*(0.1)cos(20*0+0)=2*cos(0)=2*1=2m/s$

6 0

3 years ago

As a tractor pulls a plow across a field, it exerts a force on the plow in the forward direction. What is the "equal and opposit

Karolina [17]

Answer:

the force of the plow pulling backward on the tractor

Explanation:

7 0

2 years ago

The centre of mass of a metre rule is at the 50cm mark. state what is meant by Centre of mass

Tanya [424]

Answer:

Centre of mass of any body is a point where all mass of a body is supposed to be concentrated

it lies in geometrical centre....

3 0

2 years ago

Please could someone explain this.

icang [17]

This problem is to let you practice using Newton's second law of motion:

Force = (mass) x (acceleration)

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-- The force available is (240,000 N/per engine) x (4 engines) = 960,000 N.

-- Now you know ' F ' and ' mass '. Use Newton's second law of motion to calculate the plane's acceleration.

7 0

3 years ago