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Planet a has three times the mass of planet b and the same radius. from this information, what can we conclude about the acceleration due to gravity at the surface of planet a compared to that at the surface of planet b?


It would be 3 times bigger (formula is g= mass divided by squared radius)
Hence mass grows 3 times - g will grow 3 times as well

Related Questions

Posted in Physics

Nuclear reactions result in tremendous amounts of a. uranium. b. energy. c. fission. d. mass.

I believe the correct answer from the choices listed above is option B. Nuclear reactions result in tremendous amounts of energy. nuclear reaction is considered to be the process in which two nuclear particles interact to produce two or more nuclear particles or ˠ-rays. Hope this answers the question.

Posted in Physics

Which tools would be use to find an irregularly shaped object’s mass and volume?

Scales for weight
Any beaker to measure the volume of liquid displaced

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The stress force that causes a mass of rock to pull or twist in opposite directions in called ______.

Shearing

The stress force that causes a mass of rock to pull or twist in opposite directions is called shearing.

Hope this helps! :)

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A net force of 125 N accelerates a 25.0 kg mass. What is the resulting acceleration?

Answer: a=5 m/s^2

Explanation:

The acceleration of an object can be calculated by using Newton's second law:

F=ma

where

F is the net force applied on the object

m is the mass of the object

a is its acceleration

In this problem, we have F=125 N and m=25.0 kg, so we can rearrange the equation to calculate the acceleration:

a=\frac{F}{m}=\frac{125 N}{25.0 kg}=5 m/s^2

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If you increase the force on an item without changing the mass you increase acceleration? true or false?

(F)(M)=A
Force times Mass equals Acceleration.
The answer is TRUE. 
If the mass increases the number on the left side of the equation increases, thus increasing the right side as well.

Posted in Physics

The acceleration due to gravity on Earth is 9.80 m/s2. An African elephant can have a mass up to 6,050 kg. What is its weight?

The weight on earth is equal to m*g, where m is the mass and g is the gravitational force. 6050 (m) * 9.8 (g) = 59290 Newtons.

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Rounded to the nearest whole number, what is the atomic mass of platinum? 78 117 195 273

Answer: The atomic mass of the platinum will be 195.

Explanation:

We know that,

Atomic mass is the sum of the electrons and protons.

Platinum is the chemical element and it is the symbol is Pt. The atomic number of the platinum is 78 and the atomic mass is the 195,084 u.

According to the question,

Rounded to the nearest whole number

Hence, The atomic mass of the platinum will be 195.

Posted in Physics

What is meant by the following statement? "Acceleration is inversely proportional to mass."

Answer:

he gave the correct answer its just we had options when we were doing this assignment so thanks for going in depth

Explanation:

Ps Odsseyware

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A 521-kg meteor is subject to a force of 2520 N. What is its acceleration?

Answer:

Acceleration, a=4.83\ m/s^2              

Explanation:

It is given that,

Mass of the meteor, m = 521 kg

Force acting on the meteor, F = 2520 N

Let a is the acceleration of the meteor. It can be calculated using the Newton's second law of motion. According to this law the force acting on an object is equal to the product of mass and acceleration with which it is moving. Mathematically, it is given by :

F=m\times a

a=\dfrac{F}{m}

a=\dfrac{2520\ N}{521\ kg}

a=4.83\ m/s^2

So, the acceleration of the meteor is 4.83\ m/s^2. Hence, this is the required solution.

Posted in Physics

A student hangs a mass of 150 g on a force table at an angle of 150 degrees . If she then hangs a mass of 220 g at 270 degrees. A) at what angle should she hang a mass of 195 g so that the ring is in equilibrium? B) Draw the vectors

Horizontally: 150g*cos150 + 220g*cos270 + 195g*cosΘ = 0 
cosΘ = 0.666
Θ = ± 48º 
Vertically: 
150g*sin150 + 220g*sin270 + 195g*sinΘ = 0 
sinΘ = 0.744 
Θ = 48º

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Which is the best reason for using a temperature probe instead of a thermometer? to make measurements in degrees Celsius to make measurements in degrees Fahrenheit to record continuous measurements over several minutes to record individual measurements several times in a day

Answer;

to record continuous measurements over several minutes

Explanation;

  • A temperature probe is a type of temperature sensor that is used to measure temperature changes.
  • Temperature probes are used in almost any industries with most common being, medical, food, communication and motor spot among others.
  • Temperature probes are advantageous and more preferred to thermometers as they record continuous measurements over several minutes. Other advantages include, greater sensitivity, could link to a computer for data analysis, reduces instrument reading error, etc.

Posted in Physics

Consider the following geometric solids. A sphere with a ratio of surface area to volume equal to 0.08 m-1. A right circular cylinder with a ratio of surface area to volume equal to 2.1 m-1. What results would you expect if these two models were compared in a diffusion test? A. The rate of diffusion would be the same for the two models. B. The rate of diffusion would be faster for the right cylinder. C. The rate of diffusion would be slower for the right cylinder. D. The rate of diffusion would be faster for the sphere.

Before answering this question, first we have to understand the effect of ratio of surface area to volume on the rate of diffusion.

The rate of diffusion for a body having larger surface area as compared to the ratio of surface area to volume will be more than a body having less surface area. Mathematically it can written as-

                           V∝ R            [ where v is the rate of diffusion and r is the ratio of surface area to volume]

As per the question,the ratio of surface area to volume for a sphere is given 0.08m^{-1}

The surface area to volume ratio for right circular cylinder is given 2.1m^{-1}

Hence, it is obvious that the ratio is more for right circular cylinder.As the rate diffusion is directly proportional to the surface area to volume ratio,hence rate of diffusion will be more for right circular cylinder.

Hence the correct option is B. The rate of diffusion would be faster for the right cylinder.


Posted in Physics

The space shuttle travels at about 28,000 km per hour. Using that information, estimate how many hours it will take the shuttle to reach Saturn from Earth. Show your work. Convert your answer into scientific notation if necessary.

It depends what is the position of earth and saturn. Distance from earth to saturn varies depending on whether earth is between sun and saturn or sun is between earth and saturn. Obviously, the shortest distance will be if earth is between sun and saturn. we will take that the distance between earth and saturn is:

s = 1 275 000 000 km
The time required to travel that distance is:
t = s/v = 45535 hours or 1897.3 days

Posted in Physics

The force of attraction between two objects, which is related to the object's mass is the definition of

Answer:

Explanation:

The gravitation force of attraction between the two bodies is directly proportional tp the product of masses of two bodies and inversely proportional to the square of distance between them.

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