Archive day

February 23, 2026

1,901 public questions were asked on this day.

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Watch YouTube Amoeba sisters “ homeostasis and negative / positive feedback” Based off the video Write 5. . Negative feedback/ positive feedbacks they stated on the video. Take notes to explain homeostasis and how negati...
Asked by Hjgkj 1 answer
Watch Amoeba sisters “ homeostasis and negative / positive feedback” Based off the video Write 5. . Negative feedback/ positive feedbacks they stated on the video. Take notes to explain homeostasis and how negative and p...
Asked by Hjgkj 1 answer
Which list correctly orders effort (E), fulcrum (F), and load (L) for each lever class?(1 point) Responses class 1 = F, E, L (or L, E, F) class 2 = F, L, E (or E, L, F) class 3 = L, F, E (or E, F, L) class 1 = F, E, L (o...
Asked by IGotYa 1 answer
A person pushes a box. He applies a force of 400 newtons, and he pushes the box for a distance of 4 meters. After he stops pushing, the box slides forward another meter. How much work was done by the person?(1 point) Res...
Asked by IGotYa 1 answer
Watch Amoeba sisters “ homeostasis and negative / positive feedback” Based off the video Write 10. Negative feedback/ positive feedbacks they stated on the video. Write in a 7th graders response
Asked by Hjgkj 1 answer
By using a pulley system, a farmer makes it easier to lift bales of hay by reducing the force needed. The energy she uses to complete the task is 10,000 joules, and the work done on the bales of hay is 8,000 joules. What...
Asked by IGotYa 1 answer
Why can a machine not achieve 100% efficiency in the real world?(1 point) Responses The distance over which a small amount of energy is applied increases. The distance over which a small amount of energy is applied incre...
Asked by IGotYa 1 answer
Which car has the highest efficiency? (Assume all cars have the same mass.)(1 point) Responses a car that traveled 25 kilometers on 2 liters of gas a car that traveled 25 kilometers on 2 liters of gas a car that traveled...
Asked by IGotYa 1 answer
How is the fulcrum defined?(1 point) Responses the point where force is applied to a lever the point where force is applied to a lever the point where a lever pivots the point where a lever pivots the push or pull requir...
Asked by IGotYa 1 answer
In order to calculate the force exerted to perform work, which formula should be used?(1 point) Responses force = energy / distance force = energy / distance force = work × distance force = work × distance force = work /...
Asked by IGotYa 1 answer
Which option correctly describes the relationship between simple machines, a lever, a fulcrum, effort, and load?(1 point) Responses A simple machine is a type of lever made of a bar that pivots on a fixed point called a...
Asked by IGotYa 1 answer
A construction worker uses a pulley system to lift a block. What is one of the purposes of the pulley system?(1 point) Responses to increase the force needed to move the block to increase the force needed to move the blo...
Asked by IGotYa 1 answer
What is mechanical force?(1 point) Responses the total amount of time needed to move an object a certain distance the total amount of time needed to move an object a certain distance the product of the mass of an object...
Asked by IGotYa 1 answer
Use the image of the pulley to answer the question. A photo shows a hook attached to ropes used to lift things. How is this pulley helpful for lifting objects? (1 point) Responses It allows objects to be lifted with less...
Asked by IGotYa 1 answer
Which advantage does a set of stairs have over a ladder that goes straight up?(1 point) Responses The total amount of force is less, although the distance traveled is greater. The total amount of force is less, although...
Asked by IGotYa 1 answer
A bowling ball has a mass of 6 kilograms. A person lifts the bowling ball 2 meters above the ground, using a force of about 60 newtons. How much work did the person do?(1 point) Responses 720 joules 720 joules 180 joules...
Asked by IGotYa 1 answer
How do you calculate the work done on an object when you push it?(1 point) Responses You divide the force you apply by the distance over which you are pushing. You divide the force you apply by the distance over which yo...
Asked by IGotYa 1 answer
In Spanish Hurricane Mitch in Honduras
Asked by Hjgkj 1 answer
You are a field reporter. You must research a historical natural disaster from Honduras and record or perform a 60-second news bulletin. In Spanish in a 6th graders response Your Report Must Include: 4. Include your name...
Asked by Hjgkj 1 answer
You are a field reporter. You must research a historical natural disaster from Honduras and record or perform a 60-second news bulletin. In Spanish in a 8th graders response Your Report Must Include: 4. Include your name...
Asked by Hjgkj 1 answer
You are a field reporter. You must research a historical natural disaster from Honduras and record or perform a 60-second news bulletin. In Spanish in a 6thr graders response Your Report Must Include: 4. Include your nam...
Asked by Hjgkj 1 answer
3. How does Luvvie Ajayi Jones connect with her audience on an emotional level in the TED Talk video “Get comfortable with being uncomfortable”? How do she build trust and credibility with her audience?
Asked by job 1 answer
A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point) Responses by reducing the friction on the pulleys by reducing the friction on the pulleys by decreasing the amount of...
Asked by IGotYa 1 answer
What is the name of the fixed point about which a lever rotates?(1 point) Responses groove groove pulley pulley fulcrum fulcrum bar
Asked by IGotYa 1 answer
What can be done to improve the efficiency of a ramp?(1 point) Responses Smooth the surface. Smooth the surface. Insulate the surface with foam. Insulate the surface with foam. Make it shorter and steeper. Make it shorte...
Asked by IGotYa 1 answer