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Aloiza [94]
3 years ago
6

A student forms the following hypothesis if people wear bright colors, they will be happier. What is/are the problems with this

hypothesis?
Physics
1 answer:
mars1129 [50]3 years ago
8 0
There is no scientific evidence to support this claim. And it is not telling what colors are needing to be worn only the stated bright colors which can mean an assortment of things.
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Standing still, Bruce, the quarterback, gets tackled by Biff, the 90.0-kg tackle, who is traveling at 7.0 m/s. Upon collision, B
tatyana61 [14]

\\ \sf\longmapsto \Delta P=P

\\ \sf\longmapsto m1v1=m2v2

\\ \sf\longmapsto 90(7)=m2(10)

\\ \sf\longmapsto 10m2=630

\\ \sf\longmapsto m2=\dfrac{630}{10}

\\ \sf\longmapsto m2=63kg

Bruces mass is 63kg

3 0
2 years ago
Read 2 more answers
Juanita made an electromagnet by placing an iron bar inside a coil of wire and then running current through the wire. After awhi
swat32

Answer: Correct Ans is B

Explanation:

5 0
3 years ago
Question 24 of 33 Which of the following is an example of uniform circular motion? A. A car speeding up as it goes around a curv
Fofino [41]

Answer:

Uniform Circular Motion is the Movement or Rotation of an Object along a circular Path at constant speed.

OPTION C IS YOUR ANSWER!.

8 0
2 years ago
Calculate the pH of hydronium ions in a 0.000 01 M solution of the strong acid HI.
enyata [817]
<h3>Answer:</h3>

pH = 5

<h3>Explanation:</h3>

<u>We are given;</u>

  • Concentration of a solution HI as 0.00001 M

We are required to calculate the pH of Hydronium ions.

  • When the acid dissociates in water to;

HI + H₂O → H₃O⁺(aq) + I⁻(aq)

  • Therefore;
  • The concentration of H₃O⁺ ions is 0.00001 M\
  • We need to know that pH = -log[H₃O⁺]

Therefore;

pH =-log 0.00001 M

     = 5

Thus, the pH of the hydronium ions is 5

7 0
3 years ago
If the spring constant k of a pogo stick is 3500 N m and the weight of the person on the pogo stick is 700 N, how much is the sp
algol [13]

As we know that spring force is given by

F = kx

here we know that

F = 700 N

also we know that

k = 3500 N/m

now from above equation we will have

700 = 3500 (x)

now we will have

x = \frac{700}{3500}

x = \frac{1}{5} m = 20 cm

so here we can say that end of the spring will be compressed by 20 cm

6 0
3 years ago
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