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
stellarik [79]
2 years ago
10

Gizmo Warm-up: Lifting a piano A pulley is a simple machine that is used to lift heavy objects. A pulley is a wheel with a groov

e for a rope. Pulling down on one end of the rope causes the other end to pull up. In the Object to lift menu choose Piano. What is the weight of the piano
Physics
1 answer:
Nat2105 [25]2 years ago
5 0

Answer:

bruuuuuuuuh

Explanation:

id                  

You might be interested in
Thanks + BRAINLIST <br><br> Please need correct answer asappp
nirvana33 [79]

Answer:

  1. Standing waves can be thought of as a sin wave and a cos wave overlapping each other. They go in different direction hence C is correct
  2. Wave interference can be thought of as the opposite of destructive ---> constructive anda hencd meet and interact on the same medium such that answer B is correct
6 0
2 years ago
If a 75 W lightbulb is 15% efficient, how many joules of light energy does the bulb produce every minute?
stiks02 [169]

Answer:

1 W = 1 J / sec       Definition of watt is 1 joule / sec

So if a bulb uses 75 J / sec it must use

75 J/s * 60 sec / min = 4500 J/min    energy used by bulb

If bulb is 15% efficient then the light delivered is

P = 4500 J / min * .15 = 675 J / min

4 0
2 years ago
A 0.25 kg baseball is in contact with a bat for 0.0075 s and exerts a force or Tour
Tanzania [10]

Answer:.

Explanation:

7 0
2 years ago
If a 5 N force pushes a 20 kg mass on a frictionless surface, how fast is the mass going in 5 seconds.
stira [4]

Explanation:

Let me know if you have questions

3 0
3 years ago
ADvantage of friction
kondor19780726 [428]

Answer:

1. Friction enables us to walk freely.

2. It helps to support ladder against wall.

3. It becomes possible to transfer one form of energy to another.

4. Objects can be piled up without slipping.

7 0
2 years ago
Other questions:
  • The magnetic field at the center of a wire loop of radius , which carries current , is 1 mT in the direction (arrows along the w
    9·1 answer
  • Please help!!................
    13·1 answer
  • If you have charged an electroscope by contact with a positively charged object, describe how you could use it to determine the
    13·1 answer
  • Peter was holding a Human Physiology textbook that weighs about 4lbs with his non- writing arm for one minute. His elbow remaine
    11·1 answer
  • As the temperature of a fluid decreases— A The number of inter-particle collisions decrease and random movement of particles inc
    5·2 answers
  • Romeo sets off in his spaceship tp marry juliet who lives on the planet lovelon
    14·1 answer
  • Mass of block A above is 25-kg. Calculate the force of gravity on block A.
    15·1 answer
  • In the picture shown below A represents a characteristic of only geocentric model, B represents a characteristic common to both
    14·1 answer
  • A 25 kg chair initially at rest on a horizontal floor requires a 365 N horizontal force to set it in motion. Once the chair is i
    5·1 answer
  • Explain why position is a dependent variable in a position versus time graph.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!