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krek1111 [17]
3 years ago
11

1-A car with momentum 19016 kg*m/s has a mass of 1300kg. What is the speed

Physics
1 answer:
Ymorist [56]3 years ago
6 0
The speed would be 130 mph because the car is very heavy
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If a hypothesis is.......
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Read 2 more answers
An atomic nucleus has a charge of +40e. an electron is 10-9 m from the nucleus. what is the force on the electron?
sergiy2304 [10]
The electron charge is equal to -e=-1.6\cdot 10^{-19}C. The atomic nucleus of the problem has a charge of +40 e=40\cdot (1.6\cdot 10^{-19}C)=6.4\cdot 10^{-18}C. The distance between the nucleus and the electron is r=10^{-9}m, so we can calculate the electrostatic (Coulomb) force between the two:
F=k_e  \frac{(-e)(+40e) }{r^2} =8.99\cdot 10^9 Nm^2C^{-2}  \frac{(-1.6\cdot 10^{-19}C)(6.4\cdot 10^{-18}C)}{(10^{-9}m)^2} =
=-9.2 \cdot 10^{-9} N
which is attractive, since the two charges have opposite sign.
4 0
3 years ago
A car moves with constant velocity along a straight road. Its position is x1 = 0 m at t1 = 0 s and is x2 = 66 m at t2 = 6.0 s .
UNO [17]

Answer: 1. 33, 2. 264

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. What technology produced the results illustrated here, and what is this technology used for? (1 point) Think about the methods
Olegator [25]

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Explanation: That is the answer

7 0
3 years ago
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