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trasher [3.6K]
3 years ago
6

You performed an experiment to find out what angle would make a cannonball fly the farthest when shot from a cannon. Which of th

e following is a new scientific question that can be investigated in the laboratory?
A.What is the effect of air resistance on the cannonball?
B.What color of cannonball is the prettiest?
C.What type of cannonball do people like to see at the circus?
D.What is the most interesting way to shoot a cannon?
Physics
2 answers:
Zina [86]3 years ago
7 0
A.What is the effect of air resistance on the cannonball? It's a question related to science and the experiment, which may pop into your head.
Sati [7]3 years ago
7 0

Answer:

A) What is the effect of air resistance on the cannonball?

Explanation:

In scientific investigations, we seek to gain more understanding and insight so as to better or improve already existing models.

Every other question asked does not in anyway affect the shooting or flight of the cannonball and as such has no effect on how far the cannonball would fly, however, air resistance has ample effect on both the speed and distance of the cannonball and as such, this is a question that can prompt investigation in the laboratory.

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Why electrons flow in a wire when connected to a battery?
vesna_86 [32]

Answer:

The metal atoms in the wire can't move, but their outer electrons can. The force pushes those electrons and they move to further parts of the wire, trying to reach the other end. As the electrons move away, new electrons flow into the wire through the battery to take their place.

Explanation:

6 0
3 years ago
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial spe
sattari [20]
I can't make sense of this question. Julie's throwing the ball, so it's leaving her rather than arriving at her ???
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3 years ago
A horizontal force of 675 N is needed to overcome the force of static friction between a level floor and a 300-kg crate. What is
White raven [17]

Explanation:

Below is an attachment containing the solution.

8 0
3 years ago
2 resistors of resistance 1000 ohm and 2000 ohm are joined in series with a 100V supply. A voltmeter of internal resistance 4000
Vadim26 [7]
<h2>The voltmeter reading will be 35.7 volt </h2>

Explanation:

The resistor 1000 ohm and 4000 ohm are connected in parallel .

Their combined resistance is supposed R₁

Thus \frac{1}{R_1} = \frac{1}{1000} + \frac{1}{4000}  

or R₁ = 800 ohm

Therefore the total resistance in circuit is = 2000 + 800 = 2800 ohm

Because these are in series .

We can find  current flowing through the circuit  I = \frac{V}{R} = \frac{100}{2800} = \frac{1}{28}

here R is total resistance .

The potential difference across 1000 ohm = \frac{1}{28} x 1000 = 35.7 volt

Thus voltmeter reading will be 35.7 volt

5 0
3 years ago
PLZZZ HELP
Doss [256]

Answer/Explanation:

The weight of an object is defined as the force that is exerted due to the gravitational force.

Mathematically, it can be written as :

W = m g

Where

m is the mass of the object

g is the acceleration due to gravity

Also,  

We know that the value of g varies with respect to the location. At the equator, the value of g is less as compared to the poles.

The feature of an object that affects its weight are :

Mass of the object

Location of the object

How much force Earth exerts on the object

4 0
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