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galben [10]
3 years ago
5

PLZ HELP!!!!!what would happen if a science experiment if it didn't have a well-defined question(it's for an odessey writer and

this question is worth 26 point plz and thz)
Physics
1 answer:
ella [17]3 years ago
7 0
Well, if you were going to do an experiment without a question (or a well-defined one), you would just be doing one to 'see what happens.' Well, one of two things will occur: Something will happen, or nothing will happen. In either of these cases, if you don't have an original question of why you are doing the experiment, you don't know what you're looking for. Nothing may happen, but how will you know if you weren't really looking for anything to happen. Something may happen, and you may not notice it as you weren't sure what you were looking for. Also, something may happen and you may notice it, but you won't know why it did what it did, or have a theory as to how it could have happened because you didn't try to see if anything specific happened in the first place.

If you're test isn't controlled - or doesn't have a question or hypothesis - then it is basically just an accident. Whatever happens happens, but you aren't doing anything to make anything specific happen.

I don't know what an Odyssey Writer is, but I hope this helps!<span />
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A crowbar with the length of 200 cm is used to lift the load of 600 Newton . If the distance between fulcrum and load is 0.75 .
Leviafan [203]

Answer:

a. Effort = 960 Newton

b. Mechanical advantage (M.A) = 0.625

c. Velocity ratio (V.R) = 1.67

Explanation:

Given the following data;

Load = 600 N

Length of crowbar = 200 cm

Length of load arm = 0.75 m

Conversion:

100 cm = 1 m

X cm = 0.75 m

Cross-multiplying, we have;

X = 0.75 * 100 = 75 cm

First of all, we would find the effort arm;

Effort arm = length of crow bar - length of load arm

Effort arm = 200 - 75

Effort arm = 125 cm

Next, we would determine the mechanical advantage (M.A) of the crow bar;

Substituting the values into the formula, we have;

M.A = 0.625

To find the effort of the crow bar;

Making "effort" the subject of formula, we have;

Effort = 960 Newton

Lastly, we would determine the velocity ratio (V.R);

V.R = 1.67

8 0
1 year ago
I WILL MARK YOU AS BRAINLIEST IF RIGHT The fastest pitch ever recorded in MLB was thrown by Aroldis Chapman at 5 points 105.1 mp
Goshia [24]

Answer: The force was 13.92 Newtons.

Explanation:

First, let's recall the second Newton's law:

The net force is equal to the mass times the acceleration, or:

F = m*a

where:

F = force

m = mass

a = acceleration.

When the player hits the ball with the bat, he applies a force that accelerates the ball for a small period of time, that increases greatly the speed of the ball.

In this case, we know that:

the mass of the ball is 0.145 kg

The acceleration of the ball is 96m/s^2

Then we can input those values in the above equation to find the force.

F = 0.145kg*96m/s^2 = 13.92 N

The force was 13.92 Newtons.

5 0
2 years ago
Desert sand is very hot in the day and very cool at night. what does this indicate about its specific heat capacity?
expeople1 [14]
That the climate changes during the day and night high to low
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densk [106]

Answer:

B

Explanation:

for the motion every night, it is because the Earth spins on its axis.

for the changes over a year, this is because the Earth rotates around the sun.

for the changes over hundreds, thousands or millions of years, this is because the whole solar system (including the Earth, of course) rotates with all the other stars in our galaxy around the center of the galaxy. and each star system has its own orbit (similar to the planets in our solar system).

it is very rare to see objects outside of our galaxy without a telescope, but they change too over a long period of time, because our galaxy not only rotates by also moves through the universe, and these other objects move on their own too.

3 0
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The two types of glaciers are the U type which is found in the Rocky Mountains, and the L type which can be found in Switzerland
Arturiano [62]
THE ANSWER IS TRUE
Have a nice day
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