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
Greeley [361]
2 years ago
12

A meter stick is balanced at the 50 cm mark. You tie a 20 N weight at the 20 cm mark. Where should a 30 N weight be placed so th

e meter stick will again be balanced?
Physics
1 answer:
vivado [14]2 years ago
7 0

Answer:

20 cm to the right of the center or 20+50 = 70 cm from the left side.

Explanation:

The length of meter stick is 1 m = 100 cm

Balance point on 50 cm

From the center the 20 N weight is 50-20 = 30 cm

Torque is obtained when force is multiplied with the distance

As the force is conserved we have

\dfrac{20}{30}\times 30=20\ cm

The distance will be 20 cm to the right of the center or 20+50 = 70 cm from the left side.

You might be interested in
For the image of the overhead projector to be in focus, the distance from the projector lens to the image, <img src="https://tex
rjkz [21]
Given:
distance from the projector lens to the image, di
projector lens focal length, f
distance from the transparency to the projector lens, do

thin lens equation: 1/f = 1/di + 1/do
do = 4 inches
di = 8 feet

convert feet to inches, for uniformity.
1 foot = 12 inches
8 feet * 12 inches/ft = 96 inches
 
1/f = 1/96 inches + 1/4 inches

Adding fractions, denominator must be the same.

1/f = (1/96 * 1/1) + (1/4 * 24/24)
1/f = 1/96 + 24/96
1/f = 25/96

to find the value of f, do cross multiplication
1*96 = f * 25
96 = 25f
96/25 = f
3.84 = f

The focal length of the project lens is 3.84 inches 

4 0
3 years ago
Need help with the questons asap
mina [271]
Which questions? i need to see the actual question, did you like upload them to your profile now?
4 0
3 years ago
Your first day on the job, you get a call from the owner complaining that her network connection is down. A quick check of the c
mylen [45]

Answer:

TDR means Timeout Detection and Recovery.

Explanation:

TDR is a feature of the Windows operating system which detects response problems from a graphics card, and recovers to a functional desktop by resetting the card. If the operating system does not receive a response from a graphics card within a certain amount of time (default is 2 seconds), the operating system resets the graphics card.

8 0
3 years ago
What is the difference between speed and velocity
tiny-mole [99]
Speed is the distance travelled by an object whereas velocity is distance travelled by an object per unit time in a given direction.
8 0
3 years ago
Please need help with this
PtichkaEL [24]
Through is the answer to your question
3 0
3 years ago
Read 2 more answers
Other questions:
  • A sanding disk with rotational inertia 1.2 × 10−3 kg ⋅ m2 is attached to an electric drill whose motor delivers a torque of magn
    13·1 answer
  • A block is sent up a frictionless ramp along which an x axis extends upward. The figure below gives the kinetic energy of the bl
    8·1 answer
  • How does conduction differ from convection?
    8·2 answers
  • A student discovers that sound waves travel 1,687.5 meters in 5 seconds through air at a temperature of 10°C. Based on this info
    11·1 answer
  • why are wind hydroelectic and geothermal energy resources not suitable for providing energy worldwide?
    6·1 answer
  • You are interested in space travel and want to learn more facts about space travel. Which would be the best source of informatio
    10·2 answers
  • there were 5 seconds left in a basketball game. In order to run out the clock a player threw the ball directly up as hard as he
    5·1 answer
  • You need to push a heavy box across a rough floor, and you want to minimize the average force applied to the box during the time
    7·1 answer
  • What state of matter are the outer planets?
    7·2 answers
  • A cannonball is shot horizontally off a high castle wall at 47.4 m/s. What is the magnitude of the cannonball's velocity after 1
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!