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
IrinaVladis [17]
4 years ago
10

In which situation is no work considered to be done by a force?

Physics
1 answer:
Ber [7]4 years ago
7 0

Answer:

O B. when the angle between the force and displacement is 90°

Explanation:

<h3>work defined as   w = f cos Ф * d. </h3><h3>work  can only be done if object moves(displacement) in the direction of force. now a quick one. if you since the varrious angles into the cosine, you would see that Cos 90 will give zero which implies that no work is done. Again, angle means it is perpendicular and so it is not in the direction of force.</h3>
You might be interested in
What are five of the most important things you learned in physics? ASAP
scoundrel [369]

Answer:

The definitions of mass, energy, time and space as used in Physics are circular

The Conservation of Mass and Energy

The definition of zero is not sufficiently defined in Physics

Newton’s Laws of Motion are related by Calculus

Knowing the terms of Physics is most important.

Please mark as brainliest

7 0
3 years ago
In three to five sentences, identify the acid, base, conjugate acid, and conjugate base. Use patterns in the periodic table to e
Oliga [24]

A conjugate acid is formed from the base  by accepting a proton from the acid .

A conjugate base is obtained from the Brownstead - Lowry acid when it looses a proton while the conjugate acid is obtained from the Brownstead - Lowry base when it accepts a proton. In the Brownstead - Lowry sense, acid base reaction involves the loss or gain of a proton.

Consider the hypothetical reaction; AH + :B ⇄ BH + :A. The specie BH is the conjugate acid while the specie  :B is the  Brownstead - Lowry base . The specie :A is the conjugate base while the specie AH is the  Brownstead - Lowry acid.

Learn more about conjugate acid: brainly.com/question/10468518

6 0
3 years ago
Why is the SI measurement system so important to the scientific community?
navik [9.2K]
It creates a stable foundation that allows for free communication between languages and cultures when describing nature using mathematics. The SI units of measurement can be seen as a kind of global language of logic and reason, separate from culture. It unifies mankind in understanding one another.
7 0
3 years ago
. A rope is being used to pull a mass of 10 kg vertically upward. Determine the tension on the rope, if starting from rest, the
telo118 [61]

\text{Given that,}\\\\\text{Mass, m =10 kg}\\\\\text{Time, t = 8 sec}\\\\\text{Velocity, v = 4~m/s}\\\\\text{When a body is moving upwards,}\\\\\text{Tension,}~ T=mg +ma\\\\~~~~~~~~~~~~~~~=mg+m\left(\dfrac{v-u}t \right)\\\\~~~~~~~~~~~~~~~=10(10)+10\left(\dfrac{4-0}8\right)\\\\~~~~~~~~~~~~~~~=100+10\left(\dfrac 12\right)\\\\~~~~~~~~~~~~~~~=100+5\\\\~~~~~~~~~~~~~~~=105~N

5 0
2 years ago
What was the name of charles lindbergh’s single winged airplane for his solo flight across the atlantic?
aev [14]

Answer:

Spirit of St. Louis

Explanation:

Charles Lindbergh was known as a prolific aviator during the early twentieth century. He is well known for the flight he took from Long Island, New York, to Paris, France. It was a continuous flight across the Atlantic Ocean.

The plane he used was the Spirit of St. Louis which took more than 33 hours to complete the journey. It was the first successful flight of this kind. The airplane flew from Long Island on May 20 and landed in Paris on May 21.

4 0
3 years ago
Other questions:
  • Oxygen (O2) is best described as which of the following: An element A compound A mixture
    13·1 answer
  • Please List 3 categories of properties used to classify solids.
    12·1 answer
  • The length of lines 1, 2, and 3 is the same. Each line has the same number of dots, so your finger moved along each line in the
    9·2 answers
  • Suppose that a block is pulled 16 meters across a floor. What amount of work is done if the force used to drag the block is 22 N
    5·2 answers
  • Suppose you are driving a car around in a circle of radius 212 ft, at a velocity which has the constant magnitude of 43 ft/s. A
    9·1 answer
  • An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to m
    8·1 answer
  • A banked circular highway is designed for traffic moving
    13·1 answer
  • Chromatic aberration in lenses is a result of which wave property of light?
    7·1 answer
  • 1. Calculate the work done by a 47 N force pushing a pencil 0.26 m.<br> 47x .26 = 12J<br> Solve it
    5·1 answer
  • PLEASE HELP I WILL MARK BRAINIEST!!!!!!!!! POSSIBLE ANSWERS BELOW!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!