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
Anvisha [2.4K]
3 years ago
12

Write short note on fulcrum​

Physics
1 answer:
Semmy [17]3 years ago
6 0

Answer:

The definition of a fulcrum is a pivot point around which a lever turns, or something that plays a central role in or is in the center of a situation or activity.

You might be interested in
A long wire carries a current density proportional to the distance from its center, J=(Jo/ro)•r, where Jo and ro are constants a
IgorC [24]

Answer:

B = \mu_0(\frac{1}{3} \frac{J_0}{r_0} r^2)

Explanation:

As the current density is given as

J = \frac{J_0}{r_0}r

now we have current inside wire given as

i = \int J(2\pi r)dr

i = \int \frac{J_0}{r_0} r(2\pi r)dr

i = 2\pi \frac{J_0}{r_0} \int r^2 dr

i = \frac{2}{3} \pi \frac{J_0}{r_0} r^3

Now by Ampere's law we will have

\int B. dl = \mu_0 i

B. (2\pi r) = \mu_0(\frac{2}{3} \pi \frac{J_0}{r_0} r^3)

B = \mu_0(\frac{1}{3} \frac{J_0}{r_0} r^2)

4 0
3 years ago
Supposed an object is weighted with a spring balance, first in air then while totally immersed in water.The readings on the bala
Sedbober [7]
Is An object completely submerged in a fluid displaces its own volume of fluid ". This is: D
8 0
2 years ago
Question : Is it possible for heat to transfer from T3 to T1 and why?
fomenos

Answer:

no its a negative

Explanation:

because they both are positive

6 0
3 years ago
The density of ice is 0.93 g/cm3. what is the volume, in cm3, of a block of ice whose mass is 5.00 kg? remember to select an ans
serious [3.7K]

The Volume of the ice block is 5376.344 cm^3.

The density of a material is define as the mass per unit volume.

Here, the density of ice given is 0.93 g/cm^3

Mass of the ice block  given is 5 kg or 5000 g

Now calculate the volume of the ice block

density=mass/volume

0.93=5000/Volume

Volume =5376.344 cm^3

Therefore the volume of  ice block is 5376.344 cm^3

7 0
3 years ago
If an object is not moving are the forces acting on it balanced? Yes or no?why?
xxMikexx [17]

This is another time to look at Newton's 2nd law of motion:

Net Force = (mass) x (acceleration)

If the object is not moving, then its acceleration is certainly zero, and Newton's law looks like this:

Net Force = (mass) x (zero)

or  Net Force = (zero) .

"Net Force = zero" means that if there ARE any forces acting on the object, then they add up to zero, and we call them "balanced" forces.

So the answer is '<em>yes</em>', and that's why.

6 0
3 years ago
Other questions:
  • Suppose that a nascar race car is moving to the right with a constant velocity of +82m/s. what is the average acceleration of th
    14·1 answer
  • •1 if a saturn v rocket with an apollo spacecraft attached had a combined mass of 2.9 × 105 kg and reached a speed of 11.2 km/s,
    12·1 answer
  • Which arrangement in relative size is correct? (&lt; sign means 'smaller than')
    12·2 answers
  • A cannonball fired with an initial speed of 40 m/s and a launch angle of 30 degrees from a cliff that is 25m tall.
    12·1 answer
  • What is an example of a conceptual model in science?
    14·2 answers
  • What is the acceleration of this object? The object's mass is 60 kg.
    13·2 answers
  • Because the snow suddenly gets too slushy, you decide to carry your 100-n sled the rest of the way home. How much work do you do
    6·1 answer
  • a student raises a 4kg ball to an unknown height on a building. It is calculated that the ball has a speed of 30m/s when it hits
    11·1 answer
  • How many calories are equal to one BTU? (One calorie = 4.186 J, one BTU = 1 054 J.)
    15·2 answers
  • How does surface type affect speed?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!