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MAVERICK [17]
2 years ago
9

A truck covered 2/7 of a journey at an average speed of 40

Physics
2 answers:
slavikrds [6]2 years ago
8 0

Answer:8h

Explanation:

lapo4ka [179]2 years ago
4 0

Answer: 8 km/h

Explanation:

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A hydraulic system at the mechanic shop can perform up to 180,000 joules of work in a day. if throughout the day it can lift 10
snow_tiger [21]

Answer:

9,000 N.

Explanation:

Workdone can be defined as the ability to do work. It is also the product of the force and the distance it is being moved.

Mathematically,

W = F * d

= 180,000/2

= 90,000 N.

Weight of the 10 cars = 90,000 N.

Weight of a car = 90000/10

= 9,000N.

5 0
2 years ago
Which of the following statements are true of an object in orbit around Earth? (Select all that apply.) The gravity force on the
faltersainse [42]

Answer:

All these statement are true

Explanation:

Gravity will be acting like a centripetal force for the circular motion of object around earth, which makes it perpendicular to the velocity vector. In the case of elliptical motion, gravity can still be divided into 2 vectors, one parallel and the other perpendicular to the velocity. At the nearest point in elliptical motion, gravity is directly perpendicular to velocity just like in circular motion. At the farthest point, the potential energy is minimized and has been converted into kinetic energy. Therefore at this point the speed is greatest.

5 0
2 years ago
A water park is designing a new water slide that finishes with the rider flying horizontally off the bottom of the slide. The sl
klasskru [66]

Answer: 12.62 meters

Explanation:

3 0
2 years ago
Suppose we were to attempt to use a similar machine to measure the charge-to-mass ratio of protons, instead. Suppose, for simpli
Igoryamba

Answer:

In summary, the biggest difference in the experiment is that the proton mass is much more than the electron mass, so the voltages used are high and very dangerous.

Explanation:

The machine to measure the ratio of charge / mass of the electron, has two parts: a part where it accelerates the electrons in an electric field and a second section to charter the beam and measure its radius of curvature calculated from here the q / m ratio

In the case of having protons, the charge has the same value as that of the electrons, but with a positive charge, so the polarities of the fields should be changed.

The mass of the protons is much greater than the mass of the electrons, which introduced a significant difference in the excrement, since similar electric fields the speed of the protons is much less than the speed of the electrons, so the magnetic field through which the voters pass to have equivalent deflations in many cases this small values ​​of the magnetic field are not desirable due to the interference of the Earth's magnetic field.

Another solution could be to increase the electric field to have the protons with speeds similar to the electors, this possibility is not easy either, because the field of trunking of more than 5000 V would be needed, which are very dangerous.

In summary, the biggest difference in the experiment is that the proton mass is much more than the electron mass, so the voltages used are high and very dangerous.

3 0
2 years ago
The chemical formula for glucose is C6H12O6. Therefore, four molecules of glucose will have carbon atoms, hydrogen atoms, and ox
Gekata [30.6K]
If there are 4 molecules of glucose, there will be 24 carbon, 48 hydrogen, and 24 oxygen.
5 0
2 years ago
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