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pishuonlain [190]
3 years ago
9

A lab cart is loaded with different masses and moved at various velocities

Physics
1 answer:
Sedaia [141]3 years ago
6 0
A lab cart is loaded with different masses and moved at various constant velocities? the anser should be

1.0m/s → 4kg
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Answer:

i dont know

Explanation:

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A bird uses 10 N of force to pull a worm out of the ground a distance of 3 inches. How much work did the bird do?
pochemuha

Answer:

The work done by the bird is 0.762 J

Explanation:

Given;

force applied by the bird, f = 10 N

distance the bird moved the worm, d = 3 inches = 0.0762 m

The work done by the bird is given by;

W = F x d

where;

W is the work done by the bird

d is the distance the bird moved the load

Substitute the given values and estimate the work done by the bird;

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W = 0.762 J

Therefore, the work done by the bird is 0.762 J

6 0
3 years ago
A car tire is filled with air at pressure 325000 pa at 303 K. When the tire cools,its pressure reduces to 299000 Pa. What is the
max2010maxim [7]

Answer:

new temperature of the tire will be 278.76 K

Explanation:

when the temperature increases, the particles will have greater kinetic energy and also the pressure will be increase for the gas particles.

so when the temperature increases, pressure  will also increase  and vice versa

 T is directly proportional to P

T1  = initial temperature= 303 k

P1= Initial pressure =  325000 pa

T2= Final temperature=  ?

P2= Final pressure =   299000 pa

mathematically

P1/T1= P2/T2

T2= P2 x T1/P1

T2 = 299000 x 303/ 325000=  278.76 k

6 0
3 years ago
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Hello there!
The answer is <span>False.
</span><span>Henri Becquerel was the one to discover radioactivity.
</span>Hope I helped!
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3 years ago
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