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
umka2103 [35]
4 years ago
6

Mechanical advantage describe how simple machines?

Physics
2 answers:
7nadin3 [17]4 years ago
6 0

Answer:C: multiply the input force

Explanation:

A lever is a simple machine consisting of a bar pivoted or supported at a point (known as Fulcrum) about which it can rotate to perform the task.

Mechanical Advantage MA = \frac{E}{L}=\frac{F_{L}}{F_{E}}

where E→ length of effort arm from the pivot

         L→ length of load arm from the pivot

         F_{E}→ force on the end of effort arm

         F_{L}→ force on the end of load arm

<u>By the law of conservation of angular momentum:-</u>

F_{E}\times E=F_{L}\times L

sineoko [7]4 years ago
4 0

answer would be C. multiply the input force.

You might be interested in
Need ASAP!! An object lies motionless on a rough inclined surface .
PSYCHO15rus [73]

Answer:

yes

Explanation:

yes

7 0
3 years ago
Read 2 more answers
List 3 process that can change matter from one state to another​
olya-2409 [2.1K]

Answer:

evaporation, melting, freezing

Explanation:

matter is a solid, gas, or liquid

evaporation turns a liquid to gas

melting changes a solid to liquid

freezing changes a liquid to a solid

5 0
3 years ago
The gravity tractor, is a proposed spacecraft that will fly close to an asteroid whose trajectory threatens to impact the Earth.
Crazy boy [7]

Answer:

F_g=461lb_f

Explanation:

First calculate the mass of the asteroid. To do so, you need to find the volume and know the density of iron.

If r = d/2 = 645ft, then:

V = \frac{4}{3} \pi r^3

V = \frac{4}{3} \pi r^3\\V = 1.124\times10^{9}ft^3\delta_{iron}=m/V=491lb/ft^3m=V\times\delta=5.519\times10^{11}lb

In order to find force, use Newton's universal law of gravitation:

F_g=G\frac{m_1m_2}{d^2}

Where,

G= the gravitational constant:

G= 1.068846 \times10^{-9} ft^3 lb^{-1} s^{-2}

F_g=461lb_f

4 0
3 years ago
From Gauss's law, the electric field set up by a uniform line of charge is given by the following expression where is a unit vec
Evgesh-ka [11]

Answer:

\Delta V=\lambda *ln(r_{2}/r_{1}) /\ (2\pi*\epsilon_{o})

Explanation:

Using the Gauss Law, we obtain the electric Field for a uniform large line of charge:

2\pi r L*E=\lambda *L/\epsilon_{o}

E=\lambda /\(2 \pi* r *\epsilon_{o})

We calculate the potential difference from the electric field:

\Delta V=-\int\limits^{r_{1}}_{r_{2}} E \, dr =-\int\limits^{r_{1}}_{r_{2}} \lambda dr/ (2\pi*r*\epsilon_{o})=\lambda *ln(r_{2}/r_{1}) /\ (2\pi*\epsilon_{o})

5 0
4 years ago
Suppose a box is being dragged by a force of 100 n over a rough surface. if the coefficient of kinetic friction at the interface
Alenkinab [10]
I'm sorry if this is wrong but I think it's 2.5 net
4 0
3 years ago
Other questions:
  • How did the appearance of the smallest creatures, such as the microbes and bacteria, in Earth's early history impact the geosphe
    6·2 answers
  • Which is true of the buoyant force?
    11·1 answer
  • An advantage of electron microscopes compared to light microscopes is that electron microscopes are inexpensive and commonly use
    12·2 answers
  • A student pushes on a crate with the force of 100 Newtons directed to the right. What force does the crate exert on the student?
    7·1 answer
  • As seen from earth how long does it take the moon to rotate on its axis?
    15·1 answer
  • Which object has the greatest inertia? *
    12·2 answers
  • The lawn sprinkler consists of four arms that rotate in the horizontal plane. The diameter of each nozzle is 8 mm, and the water
    5·1 answer
  • 8. Volcanoes that are mostly made up of pyroclastic material are called?
    15·1 answer
  • A force of 20 N compresses a spring with a spring constant 50 N/m. How much energy is stored in the spring?
    13·1 answer
  • Which statement is false?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!