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
dexar [7]
3 years ago
7

A second class lever needs less effort to lift a heavy load.why give reason​

Physics
1 answer:
Marrrta [24]3 years ago
7 0

Answer:second class lever needs less force to lift a load

Explanation: because the load is between the fulcrum/pivot point and the force. The fulcrum is far away from the force

You might be interested in
A typical atomic polarizability is 1 × 10-40 (C·m)/(N/C). If the q in p = qs is equal to the proton charge e, what charge separa
Alenkasestr [34]

Answer:

s = 6.25 10⁻²² m

Explanation:

Polarizability is the separation of electric charges in a structure, in the case of the atom it is the result of the separation of positive charges in the nucleus and the electrons in their orbits, macroscopically it is approximated by

                p = q s

               s = p / q

let's calculate

              s = 1 10⁻⁴⁰ / 1.6 10⁻¹⁹

              s = 0.625 10⁻²¹ m

              s = 6.25 10⁻²² m

We see that the result is much smaller than the size of the atom, therefore this simplistic model cannot be taken to an atomic scale.

6 0
3 years ago
PLEASE HELP ME PLEASE
Afina-wow [57]

Answer:

For A

Displacement= 1/2*3*6= 9m

For B

Displacement= 1/2*4*4= 8m

5 0
3 years ago
Which statement best describes a solid?
aksik [14]
Fixed shape and fixed volume

6 0
3 years ago
Read 2 more answers
True/False
Travka [436]

Answer:

True

Explanation:

5 0
3 years ago
If an object accelerates at 40 m/s per second in four minutes, what will be the final velocity? (assume the object started from
Sliva [168]
_______________________
5 0
4 years ago
Other questions:
  • A soccer ball is kicked with an initial horizontal velocity of 12 m/s and an initial vertical velocity of 19 m/s. 1 what is the
    10·1 answer
  • In 1665 Sir Isaac Newton proposed the fundamental law of gravitation as a universal force of attraction between any two bodies.
    9·2 answers
  • Assume the radius of a neutron to be approximately 1.0×10−13 cm, and calculate the density of a neutron. [hint: for a sphere v=(
    7·1 answer
  • What can change scientific knowledge?
    8·1 answer
  • Two waiters are trying to get through a single door of a kitchen. One pushes on one side of a door 0.567 m from the hinge with a
    5·1 answer
  • Assume that a lightning bolt can be represented by a long straight line of current. If 15.0 C of charge passes by in a time of 1
    10·1 answer
  • If a an object is traveling at a rate of 5 meters per second squared with a force of 10 Newtons, what is the mass of the object?
    15·1 answer
  • Explain why gaps are left between railway lines​
    6·2 answers
  • Rex Things dropped his mothers vase out the window of his forth story apartment 18.2 m above the ground. Determine it’s landing
    9·2 answers
  • 1. Sang Hee rubs a balloon on her hair until, when she holds the balloon several inches from
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!