1.imagine you were able to throw a ball in a frictionless environment such as outer space.once you let go of the ball,what will happen to the ball according to the law of inertia?a.it will travel in a straight forever line
b.it will travel striaight line but eventually slow down
c.it will continue to speed up forever
d.it will slow down and turn
2.a car accelerates down the road .what is the reaction to the tires pushing on the road?
a.the car in the tires moving the car
b.the masses of the car pushing on the tires
c.the road pushing on the tires
d.the road moving away from the tires
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Related Questions
Why is a car rounding a curve accelerating, even if it is moving at a constant speed?
How do you determine the density of an empty plastic jug?
A lizard accelerates from 2 m/s to 10 m/s in 4 seconds. what is the lizard average acceleration
Here is another code for Among UsMUMFVF
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It is clear that acceleration is directly proportional to the Force acting on a body. So, the amount of Force acting on a body is directly proportional to the acceleration, when the mass is constant.
This relationship was given be Sir Isaac Newton.
Mathematically ;
F = ma
Where F is force, a is acceleration and m is constant of proportionality , also known as mass.
the average speed and average velocity of that group?
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a total of 400 meters ... very close to a quarter mile.
On a 200-meter track, each runner does halfway around the track, and
the whole team of four runners does twice around the track.
This team did the whole thing in 50.2 seconds. The average time for each runner
was 50.2/4 = 12.55 seconds.
The average speed of each runner was (400 meters)/(50.2 seconds) = 7.968 m/s .
Velocity is a speed and a direction. We have the speed, leaving only the puzzle of
what to do about the 'average' direction.
Here's a sneaky but easy way to dispense with the whole issue:
Define the average velocity (vector) as (total displacement vector)/(total time).
Since the fourth runner finished in exactly the same spot as the first runner
began, the total displacement is zero, and therefore so is the average velocity.
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Answer: B. The earth pulls more on the shuttle
Explanation:
Gravitational pull is directly proportional to the mass of the pulling body. In this case, earth's mass is larger than moon's mass, therefore, earth's gravitational pull on satellite will be greater than moon's gravitational pull on satellite.
volume of the unknown liquid is 125mL. Is the liquid pure water? Explain your answer.
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So in order calculate the density of the unknown liquid, we need to know
its mass and its volume.
If the mass of the beaker is 165 grams empty and 309 grams with
something in it, then the mass of the stuff in it must be
(309 - 165) = 144 grams.
The question tells us that its volume is 125 mL (same as 125 cm³),
so we have everything we need.
Density = mass/volume = 144/125 = 1.152 grams per cm³ .
The density of pure water is 1.000 gram per cm³ , so the unknown liquid
is definitely not pure water.
The density of this unknown liquid is 15.2% more than that of pure water.
Even if water had a huge amount of pollution and junk in it, its density
would probably not be that much greater than 1.000 . So the unknown
liquid is probably not polluted water either.
Mass of the liquid = total mass of beaker and liquid inside the beaker -
mass of empty beaker
= 309 grams - 165 grams
= 144 grams
volume of unknown liquid = 125 ml given
Density = mass / volume = 144 / 125 = 1.152 gm / ml
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Answer:
An atom that loses a electron is called a cation and has an overall positive charge.
saw, how far out would Mickey have to sit if he wants to apply
the same force onto you that you apply onto him? meters
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To apply the same force as the person, the brother have to sit at a distance of 5 m.
What is meant by torque ?
Torque is defined as the rotational analogue of force. It is the cross product of force and the displacement of the object.
Here,
Mass of the person, m₁ = 50 kg
Mass of the brother, m₂ = 20 kg
Distance of the person, d₁ = 2 m
For the see-saw to get balanced, the torque applied by the two persons each side must be equal.
τ₁ = τ₂
where τ₁ is the torque applied by the person and τ₂ is that applied by the brother.
So, F₁d₁ = F₂d₂
m₁g x d₁ = m₂g x d₂
m₁d₁ = m₂d₂
Therefore, distance of the brother,
d₂ = m₁d₁/m₂
d₂ = 50 x 2/20
d₂ = 5 m
Hence,
To apply the same force as the person, the brother have to sit at a distance of 5 m.
To learn more about torque, click:
#SPJ2
Answer:
5
Explanation: