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sveticcg [70]
2 years ago
9

What force is required to move 7 M if the work done is 9 J

Physics
2 answers:
Murrr4er [49]2 years ago
5 0

Answer:

1.29 N

Explanation:

The equation for force (with work and distance) is:

Force=\frac{Work}{distance}

We can plug in the given values into the equation:

Force=\frac{9J}{7m}$\approx1.29 N

NARA [144]2 years ago
4 0

Answer:

1.29 Newtons

Explanation:

The equation for this question would be work = force x distance so you substitute in the values. After doing this, you should divide 9 by 7 which gives you 1.29 (rounded to 2 d.p.)

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a car accelerates along a straight road from rest to 75km/h in 5.0s. What is the magnitude of its average acceleration? show up
kykrilka [37]

Answer:

4.186 m/s^2

Explanation:

First, convert km/hr to m/s:

(75 km/hr)(1000m/1km)(1hr/60min)(1min/60s) = 20.83 m/s

Then, divide 20.93 m/s by 5.0s

(20.93 m/s) / (5.0s) = 4.186 m/s^2

5 0
2 years ago
⦁ Consider an atom. Which contributes most to the mass of the atom?
fomenos

Answer:

protons

Explanation:

6 0
3 years ago
Knowing the constant g what will the gravitational force between two masses be if the gravitational force between them is 36n an
charle [14.2K]
The gravitational force between two masses is given by:
F=G \frac{m_1 m_2}{r^2}
where
G is the gravitational constant
m1 and m2 are the two masses
r is the separation between the two masses

We see that the force is proportional to the inverse of the square of the distance: F \sim  \frac{1}{r^2}
therefore, if the distance is tripled:
r'=3r
The force decreases by a factor 1/9:
F \sim  \frac{1}{(3r)^2}= \frac{1}{9}  \frac{1}{r^2}

Since the original force was 36 N, the new force will be
F' =  \frac{1}{9} (36 N)= 4 N
6 0
3 years ago
A horizontal force of 675 N is needed to overcome the force of static friction between a level floor and a 300-kg crate. What is
White raven [17]

Explanation:

Below is an attachment containing the solution.

8 0
3 years ago
the force that is exerted when a shopping cart is pushed. the forces that causes a metal ball to move toward a magnet
alexandr402 [8]

Answer:

The force that is exerted when a shopping cart is pushed is a type of push force, supplied by the muscles of the cart pusher's body.

The forces that causes a metal ball to move toward a magnet is a type of pull force that is as a result of the magnetic field forces.

Explanation:

Forces are divided into push forces that tends to accelerate a body away from the source of the force, and pull forces that accelerates the body towards the force source.

Examples of push forces includes pushing a cart, pushing a table, repulsion of two similar poles of a magnet etc. Examples of pull forces includes a attractive force between two dissimilar poles of a magnet, pulling a load by a rope, a dog pulling on a leash etc.

8 0
3 years ago
Read 2 more answers
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