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Liono4ka [1.6K]
3 years ago
6

After watching a show about submarines, Jamil wants to learn more about the oceans. Which question could be answered through sci

entific investigation?
Which ocean has the best beaches?

Which type of whale is the most popular?

What ocean has the best scuba diving spots?

What substances dissolve in ocean water?
Physics
2 answers:
omeli [17]3 years ago
7 0

Answer: What substances dissolve in ocean water?

Explanation:

A scientific investigation can be define as the fact finding inquiry in which answers to the questions related to science can be determined. The scientific investigation can be conducted using scientific methodologies and experimental procedures.

What substances dissolve in ocean water? is the correct question which can be answered using experimental trials and observations.

 

lyudmila [28]3 years ago
6 0
He can ask what substances dissolve in ocean water. 
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Help me with physics.....<br>​due right now
serious [3.7K]

In any case, your mass would be<em> 68 kg </em>no matter what

3 0
2 years ago
A car of mass m, traveling at constant speed, rides over the top of a round hill. How do the normal force of the road on the car
dybincka [34]

Answer:

The normal force will be lower than the gravitational force acting on the car. Therefore the answer is N < mg, which is <em>option B</em>.

Explanation:

Over a round hill, the centripetal force acting toward the the radius of the hill supports the gravitational force (mg) of the car. This notion can be expressed mathematically as follows:

At the top of a round hill

Normal force = Gravitational force - centripetal force

At the foot of a round hill

Normal Force = centripetal force + Gravitational force

4 0
3 years ago
Johanna is studying what happens to the energy as a ball rolls down a ramp. What is she studying? Check all that apply. gravitat
vredina [299]
Kinetic energy


because the ball rolling
3 0
3 years ago
Read 2 more answers
Consider a railroad bridge over a highway. A train passing over the bridge dislodges a loose bolt from the bridge, which proceed
schepotkina [342]

Answer:

12.35m

Explanation:

Hello! To solve this problem we must consider the following:

1. The car moves with constant speed, which means that the distance traveled is equal to the multiplication of time by speed.

X = VT

we solve the equation for time

T=\frac{x}{V} =\frac{27}{17} =1.588s

2. The bolt moves with constant acceleration, with acceleration of 9.81m / s ^ 2, so we could apply the following equation.

note=remember that "a uniformly accelerated motion", means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.

Y= VoT-\frac{1}{2}gt^{2}

where

Vo = Initial speed

=0

T = time

=1.588s

g =gravity=9.8m/s^2

Y =  bridge height

solving

Y= \frac{1}{2}gt^{2}\\Y=(0.5)(9.8)(1.588^2)=12.35m

4 0
3 years ago
Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
vovikov84 [41]
They hit the ground at the same time
4 0
3 years ago
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