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3 years ago

What are the activities involved in scientific method?

1 answer:

6 0

Ask a Question Do Background Research Construct a Hypothesis Test Your Hypothesis by Doing an Experiment Analyze Your Dat…a and Draw a Conclusion Communicate Your Results
.

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You throw a ball upward with a speed of 14m/s. What is the acceleration of the ball after it leaves your hand? Ignore air resist

omeli [17]

The acceleration of the ball after leaving the hand is $9.8 m/s^2$ downward

Explanation:

In order to find the acceleration of the ball during its motion, we have to study which forces are acting on it.

After the ball leaves the hand, if we neglect air resistance, there is only one force acting on the ball: the force of gravity, whose magnitude is

$F=mg$

where m is the mass of the ball and g is the acceleration of gravity ( $g=9.8 m/s^2$ ), acting in the downward direction.

According to Newton's second law, the acceleration of the ball is given by

$a=\frac{\sum F}{m}$

where

$\sum F$ is the net force acting on the ball

After the ball leaves the hand, the only force acting on it is the force of gravity, so we can substitute (mg) into the previous equation:

$a=\frac{mg}{m}=g=9.8 m/s^2$

This means that the acceleration of the ball remains $9.8 m/s^2$ downward for the entire motion, after leaving the hand.

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

5 0

2 years ago

During a free fall Swati was accelerating at -9.8m/s2. After 120 seconds how far did she travel? Use the formula =1/2 * t2 to so

Ulleksa [173]

8/9 score.....................

3 0

2 years ago

Read 2 more answers

NEED ANSWERS FAST! WHICH ONE IS IT?! ?!

kow [346]

I used to wish that I can fly

5 0

2 years ago

Determine the value of the current in the solenoid so that the magnetic field at the center of the loop is zero tesla. Justify y

sleet_krkn [62]

Answer:

I will explain the concept of magnetic field and how it can be calculated.

Explanation:

The formula for magnetic field at the center of a loop is given as

B = μ $_{o}$ I / 2R

where B is the magnetic field

R is the radius of the loop

I is the current

and μ $_{o}$ is the magnetic permeability of free space which is a constant 4π × $10^{-7}$ newtons/ampere²

If the magnetic field at the center of the loop is 0, then μ $_{o}$ I = 0

I = 0 which means there will be no current flow in the loop.

3 0

3 years ago

How can magnets cause objects to have kinetic energy?

Damm [24]

Answer:

this has to do with the drop in voltage, or potential as electrons traverse the material .

4 0

2 years ago