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Alik [6]
3 years ago
10

A 1610 kg car is traveling east at 22. m/s and a 3100. kg minivan traveling west at a speed of 11.0 m/s

Physics
1 answer:
Schach [20]3 years ago
8 0

Answer:

Im pretty sure its 11 m/s east because it is 22 m/s hitting 11 m/s and the force is harder hitting

Explanation:

im not 100% sure becasue i did this stuff a while ago

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An object accelerates from rest with a constant acceleration of 5.7 m/s^2. How fast will it be traveling after it goes 80 m?​
stiks02 [169]

Explanation:

Using Kinematics, we have v² = u² + 2as.

=> v² = (0m/s)² + 2(5.7m/s²)(80m)

=> v² = 912m²/s²

=> v = 30.2m/s.

8 0
3 years ago
Read 2 more answers
Give an example of forces adding together
hammer [34]
Two forces are magnets
5 0
3 years ago
The difference in potential between the cathode and anode of a spark plug is 14700 v. what energy does the electron give up as i
Verdich [7]
The energy the electron gives up passing between the electrodes is equal to the product between its charge and the potential difference between the electrodes:
\Delta U = e \Delta V
where 
e is the electron charge
\Delta V is the potential difference

Plugging numbers into the equation, we find that the electron gives up is
\Delta U = (1.6 \cdot 10^{-19} C)(14700 V)=2.35 \cdot 10^{-15} J
8 0
4 years ago
Explain briefly where the energy come from when a liquid Rises against Gravity in a capillary tube​
SSSSS [86.1K]

Answer:

Surface tension

Explanation:

When liquid rises against gravity in a capillary tube, the energy comes from surface tension.

This is because surface tension is the energy that's needed to increase the liquid surface area.

As a result of hydrogen bonding present in Water, it usually has high surface tension which makes it to possess a tough skin that can make it not to break despite high forces applied to it.

The liquid will be in contact with the capillary tube and as such experiences surface tension which in turn makes the capillary tube to experience an upward force that makes the liquid begin to rise up.

The more the liquid keeps rising, the more it gets to the point where the surface tension becomes balanced from the weight of the liquid.

3 0
3 years ago
A Decay Chain
Strike441 [17]

Answer : The energy released in first step of thorium-232 decay chain is 7.974\times 10^{-13}J

Explanation :

First we have to calculate the mass defect (\Delta m).

The balanced reaction is,

^{232}Th\rightarrow ^{228}Ra+^{4}He

Mass defect = Sum of mass of product - sum of mass of reactants

\Delta m=(\text{Mass of Ra}+\text{Mass of He})-(\text{Mass of Th})

\Delta m=(228.0301069+4.002602)-(232.038054)=5.34\times 10^{-3}amu=8.86\times 10^{-30}kg

conversion used : (1amu=1.66\times 10^{-27}kg)

Now we have to calculate the energy released.

Energy=\Delta m\times (c)^2

Energy=(8.86\times 10^{-30}kg)\times (3\times 10^8m/s)^2

Energy=7.974\times 10^{-13}J

The energy released is 7.974\times 10^{-13}J

Therefore, the energy released in first step of thorium-232 decay chain is 7.974\times 10^{-13}J

7 0
3 years ago
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