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dexar [7]
3 years ago
7

A second class lever needs less effort to lift a heavy load.why give reason​

Physics
1 answer:
Marrrta [24]3 years ago
7 0

Answer:second class lever needs less force to lift a load

Explanation: because the load is between the fulcrum/pivot point and the force. The fulcrum is far away from the force

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There are 30 students in Ms. Andrews’ fourth grade class. There are 6 times as many students in the entire fourth grade as there
KatRina [158]

Answer:

30×6=n

Explanation:

30 students in her class× 6 = number of students in the entire 4th grade.

6 0
3 years ago
An airplane awaiting departure is cleared to takeoff, its accelerates down a runway at 3.20m/ s2 for 32.8s until it finally lift
stich3 [128]

The final velocity before takeoff is 104.96 m / s.

<u>Explanation:</u>

The last velocity of a given object over some time defines the final velocity. The final velocity of the object is given by the product of acceleration and time and adding this product to the initial velocity.

To calculate the final velocity,

                          V = u + at

where v represents the final velocity,

           u represents the initial velocity,

           a represents the acceleration

            t represents the time taken.

                            v = 0 + (3.20)\times( 32.8)

                            v   = 104.96 m / s.

7 0
3 years ago
what is the density of a material if its mass is 450 kilograms and occupies a volume of 25 centimeters cubed​
asambeis [7]

Answer:

18 kg/cm³

Explanation:Density=mass/ volume=450/25=18kg/cm³

5 0
3 years ago
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These are the reactants because they are on the left side of the equation.

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How can empty - shampoo bottles become useful?<br><br><br>​
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Crafting, reusing
Good luck!
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