1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Akimi4 [234]
3 years ago
14

A 5 kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with posit

ion as shown in the figure. The scale of the figure's vertical axis is set by Fs = 45 N. How much work is done by the force as the block moves from the origin to x = 8.0 m?

Physics
1 answer:
jekas [21]3 years ago
5 0

The work done is 315 J

Explanation:

The graph is missing: find it in attachment.

The work done by a variable force is given by

W=\int F(x) dx

where

F(x) is the magnitude of the force

x is the position

On a force vs position graph, the work done is equivalent to the area under the graph. Therefore, in order to find the work done as the block moves from x = 0 to x = 8.0 m, we have to calculate the area under the graph between these two points.

Each square corresponds (vertically) to 45 N, so the area of the first trapezium between x = 0 and x = 4.0 m is

A_1 = \frac{(4+2)\cdot 2\cdot 45)}{2}=270

Then we have to find the area of the triangle between x = 6.0 m and x = 8.0 m:

A_2 = \frac{1}{2}(2)(45)=45

Therefore, the total area (and the work done) is

W=A_1+A_2=270+45=315 J

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

You might be interested in
Two charges +q and -q are situated at certain distance, at the point exactly midway betwee them what happens on electric field a
Luden [163]

Answer: Electric field is not zero but potential is zero

Explanation:

In science, charge, also recognized as electric charge, electrical charge, or electrostatic charge and expressed q, is a component of a unit of body that reveals the extent to which it has more or fewer electrons than protons.

Considering the direction of the electric field is of positive to negative charge. Therefore, it determination be toward due −q also due to both the charges.

But for potential, it is a scalar quantity, so the sum of potential due to all the charges will be zero.

Henceforth, the option (c) Electric field is not zero but potential is zero is the correct answer.

a incorect

From the above statements, we could conclude that option (c) Electric field is not zero, but potential is zero is the correct answer. So, the option (a) Electric field and potential both are zero is an incorrect solution.

b incorect

Among all the options, the option (c) Electric field is not zero but potential is zero is the correct answer.

Therefore, the option (b) Electric field is zero but potential is not zero is an incorrect solution

d) is incorrect

It has been explained that the option (c) Electric field is not zero but potential is zero is the correct answer.

Hence, the option (d) Electric field is not zero but potential is zero is an incorrect solution.

7 0
2 years ago
Which of the following is a typical property of an ionic compound
Yanka [14]

The answer is C.

Ionic compounds are those that bring together anions and cations bonded together by ionic bonds. The electrostatic forces of the different charges are significant in the bonds that make them strong hence require high energy to break them (high melting point).  Due to the regular structure of ionic compound that tend to form lattices in solid form, when struck, they shatter along the lines of weakness of the lattice.  

6 0
3 years ago
Read 2 more answers
Pour chacune des réactions chimiques
Doss [256]

Answer: Me non espanol

Explanation:

4 0
2 years ago
How many hydrogens are in 3 molecules of H20?
Mazyrski [523]

Answer:

1 atom of oxygen

2 atoms of hydrogen in each molecule

Each water molecule contains 3 atoms making the H2O formula

3 0
3 years ago
What is the potential energy of a 30 Newton ball that is on the ground
Juli2301 [7.4K]
The potential energy of a 30N ball on the ground will be zero. With respect to height, h. Potential energy will be calculated like this. P=mgh. So if its on the ground relatively speaking the h=0. Thus inputting into the above formula. P=0.
3 0
2 years ago
Other questions:
  • Wave is traveling at 60 cm/second and has a wavelength of 15 cm, what is the frequency?
    10·1 answer
  • When a wave passes from one medium to another, its _________ remains constant.
    9·1 answer
  • A car drives around a curve with a radius of 42 m at a velocity of 24 m/s. What is the centripetal acceleration of the car?
    12·2 answers
  • Plz help asap pic down below
    13·1 answer
  • The objects in the inner part of our solar system are composed mostly of
    9·1 answer
  • UPVOTE FOR EVERY ANSWER!
    11·1 answer
  • Please help 25 points and brainliest
    8·1 answer
  • Ent Cards<br> 4.Q: True or False? Anotherword for<br> tube is "duct."<br> A:<br> Explanation:
    12·1 answer
  • それで、私はヘビと一緒に座っていました、そしてこれが起こりました、私のヘビは本当に奇妙に行動していたので私は本当に混乱したようでした、私のヘビは本当に奇妙に行動していたので、私はオーロラのようでした、やめてください。それから彼女は私をすべて奇妙に見たので私
    10·1 answer
  • Planet X has a moon similar to Earth’s moon.<br><br> Which path would this moon’s orbit take?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!