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Leto [7]
3 years ago
5

If we decrease the amount of force applied to an object, and all other factors remain the same, the amount of work completed wil

l
A decrease.
B increase.
C increase, then decrease.
D not change.
Physics
2 answers:
mina [271]3 years ago
6 0
The answer is A.) decrease.
Take pushing a box for example. You push your hardest but then give out, still trying to push. You're doing less work than what you started with.
Dominik [7]3 years ago
6 0

Answer:

Option A is the correct answer.

Explanation:

We know that the expression for work

          Work = Force x Displacement

So work is directly proportional to force.

Here force is decreasing, so work also decreases.

Option A is the correct answer.

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A Net Force of 9.0 N acts through a distance of 3.0 m in a time of 3.0 s. The work done is?
JulijaS [17]
Work done is the distance a force acts over.

So, the work done here is 9.0N * 3.0m = 27 J
5 0
3 years ago
Read 2 more answers
An apparatus like the one Cavendish used to find G has large lead balls that are 5.2 kg in mass and small ones that are 0.046 kg.
Ber [7]

Answer:

The magnitude of gravitational force between two masses is 4.91\times 10^{-9}\ N.

Explanation:

Given that,

Mass of first lead ball, m_1=5.2\ kg

Mass of the other lead ball, m_2=0.046\ kg

The center of a large ball is separated by 0.057 m from the center of a small ball, r = 0.057 m

We need to find the magnitude of the gravitational force between the masses. It is given by the formula of the gravitational force. It is given by :

F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67259\times 10^{-11}\times \dfrac{5.2\times 0.046}{(0.057)^2}\\\\F=4.91\times 10^{-9}\ N

So, the magnitude of gravitational force between two masses is 4.91\times 10^{-9}\ N. Hence, this is the required solution.

5 0
3 years ago
Low air pressure systems are usually associated with which type of weather?
Rzqust [24]

Answer:

cloudy and wet

Explanation:

cloudy and wet

3 0
3 years ago
What does KCI stand for
stepan [7]

Answer: KCI stands for kinetic corporation inc its a global corporation that produces medical technology related to the wounds and healing wounds

(i hope that's what you meant)

Explanation:

7 0
3 years ago
A Cessna aircraft has a liftoff speed of 120 km/h What minimum constant acceleration does the aircraft require to be airborne af
Lady_Fox [76]

Answer:

<h3>2.3125m/s²</h3>

Explanation:

Using the equation of motion v² = u²+2aS

v is the final velocity = 120km/hr

120km/hr = 120 * 1000/1 * 3600 = 33.3m/s

u is the initial velocity = 0m/s

a is the acceleration

S is the distance covered = 240m

On substituting the given parameters

33.3² = 0²+2a(240)

33.3² = 480a

1110 = 480a

a = 1110/480

a = 2.3125m/s²

Hence the minimum constant acceleration that the aircraft require to be airborne after a takeoff run of 240 m is 2.3125m/s²

4 0
3 years ago
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