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
Debora [2.8K]
2 years ago
7

A lever is used to lift a heavy rock. The rock has a mass of 800 N. It requires 200 N of force to lift the rock using the lever.

What is the MA of the lever?
Physics
1 answer:
inna [77]2 years ago
5 0

Answer:

The answer for this solution is 4

Explanation:

MA=L/E

800/200

=4

You might be interested in
The main difference between turbojets and rocket engines is the fact that
mafiozo [28]

Answer;

D. rocket engines are not dependent on oxygen from the air.

Explanation;

-Jet engines and rockets work on the same principle. They produce thrust through an internal pressure difference and, as explained by Newton’s Third Law of Motion, eject exhaust gases in an equal and opposite direction.

-The main difference between them is that jets get the oxygen to burn fuel from the air and rockets carry their own oxygen, which allows them to operate in space.

Additionally, Jet engines have two openings (an intake and an exhaust nozzle). Rocket engines only have one opening (an exhaust nozzle).

5 0
3 years ago
Read 2 more answers
What value should be reported for the total mass of three samples of iron weighing 117.0 g, 19.43 g, and 6.1043 g?
AURORKA [14]

The value that should be reported for the total mass of three samples of iron will be 0.143 Kg or 143 g

<h3>What is Mass and Weight ?</h3>

Mass is the quantity of matter. While weight is a gravitational pull on an object. Mass is measured in Kg while weight is measured in Newton.

What value should be reported for the total mass of three samples of iron weighing 117.0 g, 19.43 g, and 6.1043 g?

The total mass will be the sum of the three masses.

The total mass = 117 + 19.43 + 6.1043

The total mass = 142.5343 g

Convert gram to kilogram by dividing the answer by 1000

The total mass = 142.5343/1000

The total mass = 0.1425343 Kg

Therefore, the value that should be reported for the total mass of three samples of iron will be 0.143 Kg or 143 g approximately

Learn more about Mass and Weight here: brainly.com/question/1384116

#SPJ1

5 0
1 year ago
The maximum current output of a 60 ω circuit is 11 A. What is the rms voltage of the circuit?
bezimeni [28]

Answer:

660V

Explanation:

V=IR

V=11×60

=660V

hope this helps

please like and Mark as brainliest

8 0
3 years ago
While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to c
MakcuM [25]
When Venus put in a different battery with higher voltage ... no matter
what other components were in the circuit ... the voltage across the
light bulb, and the current through it, both had to increase, and the
light bulb had to shine brighter than before.  
7 0
3 years ago
Read 2 more answers
A boat is heading across a river at a velocity of 25 mph. The river is flowing downstream at 10 mph. What is the actual velocity
AnnyKZ [126]
Principle: Pythagorean theorem

Given:
Let a = boat velocity = 25 miles per hour
      b = river velocity = 10 miles per hour

Required: c = actual velocity

Solution:
     
     c^2 = a^2 + b^2
     c^2 = (25)^2 + (10)^2
     c^2 = 725
     (c^2)^0.5 = (725)^0.5
      c = 26.93 miles per hour

<em>ANSWER: Actual boat velocity is 26.93 miles per hour</em>
8 0
3 years ago
Other questions:
  • Which of the following statements about energy in systems is true?
    8·1 answer
  • Electrons are accelerated through a voltage difference of 230 kV inside a high voltage accelerator tube. What is the final kinet
    9·1 answer
  • Where does the engery of an earthquake originate
    13·1 answer
  • Marcia pokes fun at her husband Brian because he loves to sing in the shower every morning, but
    13·1 answer
  • Which of the following is an example of heat being transferred by radiation? Choose all that apply, Fire, Sun, Candle Flame, Sto
    7·2 answers
  • If this energy were used to vaporize water at 100.0 ∘C, how much water (in liters) could be vaporized? The enthalpy of vaporizat
    6·1 answer
  • Now assume that the frictional force f is not at its maximum value. What is the relation between the torque Ï„ applied to each w
    10·2 answers
  • A green plant has_____energy
    12·1 answer
  • When Marie sees the red traffic light, Marie brakes to a halt from a speed of 70 m/s in just 2 seconds. What is her deceleration
    6·1 answer
  • Give me a copy and pasted bible lol
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!