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
Dahasolnce [82]
3 years ago
6

A lever is used to lift a heavy rock. The mechanical advantage of the lever is 4 and the lever applies a force of 800 N to the r

ock. What is the force applied to the lever?
Physics
1 answer:
Lesechka [4]3 years ago
7 0
 The force applied to the lever is 400 N, because the force applied by the lever (800 N) divided by the mechanical advantage of the lever (4) equals
400 N.

(800/4) = 200
You might be interested in
Brainly app · Installed
Sauron [17]
I need a picture plz I don’t know what to answer.
6 0
3 years ago
How much work is accomplished when a force of 250 N pushes a box across the floor for a distance of 50 meters?
mote1985 [20]
We use the work formula to solve for the unknown in the problem. The formula for work is expressed as the product of the net force and the distance traveled by the object. We were given both the force and the distance so we can solve work directly.

Work = 250 N x 50 m = 12500 J

Thus, the answer is C.
7 0
3 years ago
Which of the following has the lowest density ? A.mineral water b. Water c. Oxygen d. Salt water
tia_tia [17]

Answer:

c

Explanation:

Mineral water, water, and salt water are all liquid solutions, while oxygen is a gas. Gases are less dense than liquids.

7 0
3 years ago
A 4 kg particle moves at a constant speed of 2.5 m/s around acircle of radius 2 m. What is its angular momentum about the center
blagie [28]

Explanation:

Given that,

Mass of the particle, m = 4 kg

Speed of the particle, v = 2.5 m/s

The radius of the circle, r = 2 m

We need to find the angular momentum about the center of the circle. The formula for the angular momentum is given by :

L=mvr

Substitute all the values,

L=4\times 2.5\times 2\\\\L=20\ kg{\cdot}m^2s

So, the angular momentum of the particle is 20 kg-m² s.

6 0
3 years ago
Fast-moving glaciers that can move up to 6 kilometers per year
AlladinOne [14]
The answer for this question would be the term SURGING. Surging is the fast-moving glacier that can move up to 6 kilometers per year. I<span>t flows more quickly, sometimes moving 10 to 100 times faster than it normally does. This is one of the classification of a glacier aside from the normal type. Hope this answers your question.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • A child’s toy rake is held so that its output arm is 0.75 meters. If the mechanical advantage is 0.33, what is
    7·1 answer
  • 4. Charge may be measured in the
    6·1 answer
  • How was hubble important to our understanding of galaxies?
    12·1 answer
  • (06.04 MC)<br> Which of the following best describes a human egg cell? (3 points)
    10·1 answer
  • A box fails to slide down a ramp at a warehouse. what happens if you put the box on a cart that has wheels?
    8·2 answers
  • How does Bohr’s model of the atom compare with Thomson’s model?
    8·2 answers
  • When temperature increases the kinetic energy of the particles in a material, true or false?
    14·1 answer
  • Where is most of the mass of an atom located? in the nucleus in the orbits in the electrons it is split between the nucleus and
    5·2 answers
  • A skateboarder rolls horizontally off the top of a staircase and lands at the bottom. The staircase has a horizontal length of 1
    11·1 answer
  • 1. What is the kinetic energy of a 94 kg basketball player running at 7.3 m/s?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!