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Alecsey [184]
3 years ago
13

A weight lifter raises a 1600 N barbell to a height of 2.0 meters. How much work was done? W = Fd

Physics
2 answers:
-Dominant- [34]3 years ago
3 0
D) 3200 joules is the answer
Naya [18.7K]3 years ago
3 0

Answer : Work done, W = 3200 Joules.

Explanation :

The force acting on the berbell, F=1600\ N

The height attained by it, h=2\ m

We know that the relation between the work done, force acting and the displacement is given by :

W=F\times d

W=1600\ N\times 2\ m

W=3200\ Joules

The work done will be 3200 Joules.

So, the correct option is (D).

Hence, this is the required solution.

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Listed following are three possible models for the long-term expansion (and possible contraction) of the universe in the absence
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From smallest ratio to the largest ratio:

Coasting Universe - Critical Universe - Recollapsing Universe(From left to right)

Explanation:

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What is the weight of a 4.2 kg bowling ball on Mars?
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Answer:

1.59 kg

Explanation:

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<u>F = G((Mm)/r2) </u>

F is the gravitational force between two objects,

G is the Gravitational Constant (6.674×10-11 Newtons x meters2 / kilograms2),

M is the planet's mass (kg),

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Hope this helps

--Jay

8 0
3 years ago
The atoms in a sidewalk on a hot summer day are vibrating _____ the atoms in the sidewalk on a freezing day in winter.
Karolina [17]

Answer:

(A) more rapidly than

Explanation:

With higher temperatures, object's molecules (and atoms) have higher kinetic energy which is due to faster "jiggling" (vibrations). On a hot day these vibrations in the material the sidewalk is made of are more rapid than on a cold day, just as their temperatures differ.

7 0
3 years ago
Read 2 more answers
What is the value of R2 in this parallel circuit? (5 stars)
o-na [289]

Answer:

20 Ω

Explanation:

Voltage, current, and resistance are related by Ohm's law:

V = IR

40 V = (4 A) R

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The total resistance of the circuit is 10 Ω.

Resistors in parallel have a total resistance of:

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R₂ = 20 Ω

4 0
2 years ago
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