Answer: 0.516 ft/s
Explanation:
Given
Length of ladder L=20 ft
The speed at which the ladder moving away is v=2 ft/s
after 1 sec, the ladder is 5 ft away from the wall
So, the other end of the ladder is at

Also, at any instant t

differentiate w.r.t.

Bottom of the distillation flask
Explanation:
The solid in the mixture to be separate would be found at the bottom of the distillation flask.
Distillation is a separation technique for differentiating the components of mixtures based on the differences in their boiling points.
- Distillation is used to recover solvents from solution.
- The solutes are then left behind in the flask as the solvent boils out as vapor.
- The solution is boiled in a distillation flask to vaporize the solvent.
- The vapor is made to condense back into liquid by means of a condenser.
- The pure liquid called distillate is collected in the receiver.
- The solute which is the solid remains in the distillation flask
learn more:
Heterogeneous mixtures brainly.com/question/1446244
Pure substances brainly.com/question/1832352
#learnwithBrainly
Answer:
refraction
Explanation: hope this helps :)
Answer:
The eyepiece comprises a converging lens that is a magnifying lens. The lens has a short focal length,
This lens magnifies this image.
Explanation:
In lenses such as those in microscopes and telescopes, the objective forms an image with the following features:
1. Image is real
2. Image is diminished in size
3. Also, the image formed is upside-down.
The eyepiece comprises a converging lens that is a magnifying lens. The lens has a short focal length,
This lens magnifies this image.
Answer:
friction reduces the efficiency of machines, thus we must reduce the friction force that is acting upon it.