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vodomira [7]
3 years ago
7

. True/False mass is a fundamental Quantity

Physics
1 answer:
alukav5142 [94]3 years ago
6 0

Answer:

  1. true
  2. false
  3. false
  4. true
  5. sorr
  6. true I really sorry I can't give answer because I don't know answer
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Francium decays with a half-life of 22 minutes. If we start out with 639 mg of francium,how much would remain after 2.7 hours?
Vinil7 [7]

Answer:

3.87 or 3.9 mg

Explanation:

2.7h * 60mins = 162mins

number of 1/2 lives = 162/22= 7.364

amount remaining = 639(1/2)^7.364 = 3.8796

answer = 3.87 or 3.9

6 0
4 years ago
Question 10 of 34
labwork [276]

Julia walks from the park, which is six blocks east of her house, to the store, which is three blocks east of her house. Julia walks for 5 minutes. This walk's average speed will be 1.2 blocks per minute. Option B is correct.

<h3>What is displacement?</h3>

Displacement is defined as the shortest distance between the two points. Distance is the horizontal length covered by the body. While displacement is the shortest distance between the two points.

Displacement is a vector quantity .its unit is m.

The average velocity on this walk will be;

\rm v_{avg}= \frac{d}{t} \\\\ \rm v_{avg}= \frac{6 \ block+ 3 \ block }{5 \ minute } \\\\ v_{avg}=1.4  \ block /min

Hence option B is correct.

To learn more about displacement refer to the link; brainly.com/question/10919017

#SPJ1

3 0
2 years ago
Which type of drug would be useful in dilating the pupils for an examination of the retina? Which type of drug would be useful i
givi [52]

Answer:

muscarinic receptor inhibitor

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the gas giants has the largest diameter <br><br> Physical science unit 5 lesson 4
Mekhanik [1.2K]
Jupiter has the largest diameter

3 0
3 years ago
Read 2 more answers
A ductile cast-iron bar is to support a load of 178 kN in a heat-treating furnace used to make malleable cast iron. The bar is l
Nitella [24]

Answer: L.M = 34.69

Area of the bar = 25835m^2

Explanation: To design a bar that can withstand temperature at 773K for 10years, we need to calculate and know:

1) the Larson Miller value

2) rupture time

3) creep rate

4) stress and load.

Please find the attached file for the solution

3 0
4 years ago
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