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crimeas [40]
4 years ago
11

Medicine A is an effective treatment for the common cold a study was conducted to test the effectiveness of medicine A which que

stion would help determining whether the conclusion above is valid
Physics
2 answers:
Xelga [282]4 years ago
8 0
According to my research I found questions with the same info with option choices and they are:

A.) How many people in the study had the flu?
 B.)  How many people were included in the study?
 C.) What was the average age of the people in the study?
 D.)  What was the most common occupation of people in the study?

Among those options the answer would be the second choice B)
Nataliya [291]4 years ago
5 0

B.) How many people were included in the study?

This is the best answer, as the more people there is, a greater variety of choices is possible, leading to a better result that can usually apply to a larger population.

hope this helps

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A 6.00 μFμF capacitor that is initially uncharged is connected in series with a 4.00 ΩΩ resistor and an emf source with EE EMF =
Sindrei [870]

Answer: Rr = 900w

T = 1.66×10^-5s

P = 36.92W

Explanation: please find the attached file for the solution.

3 0
4 years ago
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SOMEONE PLZ HELP , I HAVE 4 HW DUE TMR BC MY TEACHER JUST GIVE ME A VERY SHORT TIME TO DO THE WORK . 50POINTS
Alexxandr [17]

Answer:

4. Violet light has the shortest wavelength of all the colours and the highest frequency. Red has the longest wavelength and the lowest frequency.

5.

a. Radio waves

b. Radio waves

c. Radio waves

d. Radio waves

e. Infrared waves

f. Infrared waves

g. Infrared waves

h. X-ray waves

i. Gamma ray waves (UV)

6. Ultraviolet (UV) radiation

7. Premature aging of the skin and sun damage

(liver spots, keratosis, solar elastosis, etc.)

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3 0
3 years ago
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During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the wall to 12.0 m/s away from the
mixas84 [53]
So the problem ask to calculate the magnitude of the average force applied to the ball if its mass is 0.2kg changes its velocity from 20m/s to 12m/s and the time contact with the ball with the wall is 60 ms. In my calculation the best answer would be 107N.
8 0
3 years ago
A sphere of radius 0.03m has a point charge of q= 7.6 micro C located at it’s centre. Find the electric flux through it?
GalinKa [24]

Answer:

The electric flux through the sphere is 8.58 *10^{5} \frac{Nm^2}{C}

Explanation:

Given

Radius,\ r = 0.03m\\Charge,\ q =7.6\µC

Required

Find the electric flux

Electric flux is calculated using the following formula;

Ф = q/ε

Where ε is the electric constant permitivitty

ε = 8.8542 * 10^{-12}

Substitute ε = 8.8542 * 10^{-12} and q =7.6\µC; The formula becomes

Ф = \frac{7.6\µC}{8.8542 * 10^{-12}}

Ф = \frac{7.6 * 10^{-6}}{8.8542 * 10^{-12}}

Ф = \frac{7.6}{8.8542} *\frac{10^{-6}}{10^{-12}}

Ф = \frac{7.6}{8.8542} *10^{12-6}}

Ф = 0.85834970974 *10^{12-6}}

Ф = 0.85834970974 *10^{6}}

Ф = 8.5834970974 *10^{5}}

Ф = 8.58 *10^{5} \frac{Nm^2}{C}

Hence, the electric flux through the sphere is 8.58 *10^{5} \frac{Nm^2}{C}

7 0
3 years ago
While a block slides forward 1.35 m, a force pulls back at a 135 direction, doing -17.8 J of work. what is the magnitude of the
Verdich [7]

The magnitude of the force is 18.6 N

Explanation:

The work done by a force on an object is given by

W=Fd cos \theta

where

F is the magnitude of the force

d is the displacement of the object

\theta is the angle between the direction of the force and of the displacement

For the block in this problem, we have

W=-17.8 J is the work done

d = 1.35 m is the displacement of the block

\theta=135^{\circ} is the angle between the force and the displacement

Solving for F, we find the magnitude of the force:

F=\frac{W}{d cos \theta}=\frac{-17.8}{(1.35)(cos 135)}=18.6 N

Learn more about work here:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

8 0
4 years ago
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