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ra1l [238]
4 years ago
5

Which of the following measurements changes based on the strength of gravity? A.Mass B.Size C.Length D.Weight

Physics
2 answers:
kaheart [24]4 years ago
7 0
Weight. As a scientific term Weight is referred to as the force that Earth and objects have with each other. Your weight can be different on other planets.
Reptile [31]4 years ago
4 0
<span>The Correct answer is D. Weight</span>
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A car rounds a flat curve and experiences a centripetal force directed toward the center of the curve and perpendicular to the d
Usimov [2.4K]
<h2>Answer:</h2>

If a car is rounding a flat curve, it experiences a centripetal force that pulls it towards the center of the circle it is rotating in.

Now,

The centripetal force can be balanced by the centrifugal force caused due to the acceleration of the body at the high speed which counters the centripetal force and in turn <u>prevents the car from slipping down the curve.</u>

So,

If the car doesn't hit the gas then the <em><u>car will fall down from the curve</u></em> as the Centripetal force will exceed the Centrifugal force of the car.

However, if the car doesn't hit the brake then the <em><u>car will maintain it's position on the flat curve</u></em> track as the centrifugal force will counter the effect of centripetal force directed towards the center.

3 0
3 years ago
Read 2 more answers
What units is the Metric System of Measurement based on?
Alex787 [66]

Answer:

metre for length and the kilogram for Mass

3 0
3 years ago
A huge cannon is assembled on an airless planet (ignore any effects due to the planet's rotation). The planet has a radius of 5.
Ganezh [65]

Answer:

The projectile's speed as it passes the satellite is 1497.8 m/s.

Explanation:

Given that,

Radius of planet r=5.00\times10^{6}\ m

Mass of planet m=3.95\times10^{23}\ kg

Speed = 2000 m/s

Height = 1000 km

We need to calculate the projectile's speed as it passes the satellite

Using conservation of energy

E_{1}=E_{2}

\dfrac{1}{2}mv_{1}^2+\dfrac{GmM}{r_{1}}=\dfrac{1}{2}mv_{2}^2+\dfrac{GmM}{R+h}

\dfrac{v_{1}^2}{2}+\dfrac{GM}{r_{1}}=\dfrac{v_{2}^2}{2}+\dfrac{GM}{R+h}

-\dfrac{v_{2}^2}{2}=-(\dfrac{GM}{R}-\dfrac{GM}{R+h}-\dfrac{v_{1}^2}{2})

v_{2}^2=v_{1}^2+2GM(\dfrac{1}{R+h}-\dfrac{1}{R})

v_{2}=\sqrt{v_{1}^2+2GM(\dfrac{1}{R+h}-\dfrac{1}{R})}

Put the value into the formula

v_{2}=\sqrt{2000^2+2\times6.67\times10^{-11}\times3.95\times10^{23}(\dfrac{1}{5.00\times10^{6}+1000\times10^{3}}-\dfrac{1}{5.00\times10^{6}})}

v_{2}=1497.8\ m/s

Hence, The projectile's speed as it passes the satellite is 1497.8 m/s.

4 0
4 years ago
23 and 24 only please help!
Lilit [14]

Answer:

23: Acceleration 24:1m/s^2

Explanation:

a = (v_f - v_i) /delta(t)\\a=(16-10)/6\\a=6/6\\a=1m/s^2

7 0
3 years ago
What are the two types of force
Evgen [1.6K]

Answer:

Forces can be divided into primarily into two types of forces:

  • Contact Forces.
  • Non-contact Forces.

Explanation:

5 0
3 years ago
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