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
Elden [556K]
3 years ago
13

A force F with arrow= (5xî+ 4yĵ), where F with arrow is in newtons and x and y are in meters, acts on an object as the object mo

ves in the x direction from the origin to x = 5.01 m. Find the work W = F with arrow · dr with arrow done by the force on the object.
Physics
1 answer:
harkovskaia [24]3 years ago
6 0

Answer:

w= 62.75 J

Explanation:

Given that

Force vector F= 5 x i + 4 y j

Space vector or displacement vector d= 5.01 i

We know that work (w)

w=∫ F.ds

w= ∫(5 x i + 4 y j) .dx            ( only object is moving in x- direction)

w=\int_{0}^{5.01}5xi.dxi

w=\int_{0}^{5.01}5x.dx

w=\left [\dfrac{5}{2}x^2\right ]_0^{5.01}

w= 2.5 x 5.01² J

w= 62.75 J

You might be interested in
What was Robert Boyle's most famous discovery about gases​?
stellarik [79]

Answer:

The inverse(opposite) relationship between absolute pressure and the volume of a gas. This is known as Boyle's law.

Explanation:

The temperature must be kept the same in a closed system.

4 0
3 years ago
Analyze the following terms and phrases about solar activity. Select the two that represent correct matches between cause and ef
blagie [28]

Answer:

a) solar activity -- sudden eruptions of large bubbles of plasma and magnetic energy

and

d) solar flare -- sudden release of magnetic energy

Explanation:

We can start by eliminating the options that are definitely wrong.

A coronal mass ejection is not a relatively cool spot on surface of the sun, in fact such a spot is a sunspot, while a coronal mass ejection occurs when the  magnetic field of the sun emerges as a loop. Thus, both options B and E are incorrect, leaving only A,  C, and D. Option C makes no sense, as the sun's gravitational field does not 'churn'. Thus, only options A and D are left. A closer look at A and D reveals they are correct; solar flares are in fact sudden releases of magnetic energy, as seen in this quote from UC Berkeley's website; "Solar flares are caused by sudden changes of strong magnetic fields in the Sun's corona.". And solar activity is a blanket term for the effects of eruptions of plasma and magnetic energy from the sun.

7 0
3 years ago
What should be done to protect forest ?​
Juli2301 [7.4K]

Plant trees on places where forests have been chopped down to restore damaged ecosystems. Encourage individuals to live in a way that is environmentally friendly. Create parks to conserve the rainforests and animals. Companies that operate in environmentally friendly methods should be supported.

6 0
2 years ago
Read 2 more answers
NEED ASAP PLEASE
miskamm [114]

Given that the block have two applied masses 250 g at East and 100 g at South. In order to make a situation in which block moves towards point A, we have to apply minimum number of masses to the blocks. In order to prevent block moving toward East, we have to apply a mass at West, equal to the magnitude of mass at East but opposite in direction. Therefore, mass of 250 g at West is the required additional mass that has to be added. There is already 100 g of mass acting at South, that will attract block towards South or point A. No need to add further mass in North-South direction.

6 0
3 years ago
Explain the meaning and use of the following acronyms: HELIOS, Exo-FMS, HAZMAT, NIRSpec.​
adelina 88 [10]

Answer:

HELIOS- The god of the sun in

HAZMAT-Hazardous materials

NIRSpec- Near Infrared Spectrograph

Explanation:

4 0
2 years ago
Other questions:
  • When astronomers observe the spectra of distant galaxies,they notice that the hydrogen emission lines are shifted noticeably tow
    8·1 answer
  • a plane being propelled due east is actually moving at 225mph an angle of 40 degrees north of east, how fast is the crosswind th
    14·1 answer
  • What is the net charge on a sphere that has the following? (a) 5.87 106 electrons and 8.11 106 protons C
    7·2 answers
  • _____ is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuri
    5·1 answer
  • A front wheel drive vehicle is pulling to the left. Loose engine cradle bolts are noticed during the initial inspection. Technic
    13·1 answer
  • That 85 kg paratrooper from the 50's was moving at constant speed of 56 m/s because the air was applying a frictional drag force
    13·1 answer
  • car accelerates from 10m/s to 25m/s in 6.0s what is its acceleration? how far did it travel in this time? assume constant accele
    6·1 answer
  • How do asteroids and comets differ?
    14·1 answer
  • A baseball (A, weight 0.33 lb) moves horizontally at 20 ft/s when it strikes a stationary block (B, weight 10 lb), supported by
    12·1 answer
  • An object has a mass of 12 kg. On Planet A, the object weighs 117.6 N. The force of gravity on Planet A is
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!