Physics College

In the absence of a gravitational field, you could determine the mass of an object (of unknown composition) by:
A) applying a known force and measuring it's acceleration.
B) measuring the volume.
C) weighing it.

Answers

Answer 1

Answer:

A) By applying a known force, and measuring it's acceleration.

Explanation:

This is actually something that astronauts do in space as a mathmatical exercise when calculating the mass of an object since F = m × a.

Once the force, and acceleration are applied, the only unknown is the mass which can be solved by dividing force over acceleration. This is because inertial mass is equal to gravitational mass.

Related Questions

help me get the answer in Physical Science.

Answers

Answer:

lithium

Explanation:

I took physical science 2 years ago and passed with an A

While making some observations at the top of the 66 m tall Astronomy tower, Ron
accidently knocks a 0.5 kg stone over the edge. How long will a student at the bottom
have to get out of the way before being hit?

Answers

Analysing the question:

Since the stone was dropped, there was no initial velocity applied on it and hence it's initial velocity of the stone is 0 m/s

We are given:

height of the tower (h) = 66 m

mass of the stone (m) = 0.5 kg

initial velocity of the stone (u) = 0 m/s

time taken by the stone to reach the ground (t) = t seconds

acceleration due to gravity = 10 m/s²

** Neglecting air resistance**

Finding the time taken by the stone to reach the ground:

from the second equation of motion

h = ut + 1/2at²

replacing the variables

66 = (0)(t) + 1/2 (10)(t)²

66 = 5t²

t² = 13.2

t = 3.6 seconds

I initially wanted to subtract the height of the student from the height of the tower since the time i calculated is the time taken by the stone to reach the ground and that means that the stone has already hit the student before 3.6 seconds

but since we were NOT given the height of a student, the person who posed this question wants the time taken by the stone to reach the ground and that is what we solved

Density is calculated by dividing the mass of an object by its volume. The Sun has a mass of 1.99×1030 kg and a radius of 6.96×108 m. What is the average density of the Sun?

Answers

Answer:

Density is calculated by dividing the mass of an object by its volume. The Sun has a mass of 1.99×1030 kg and a radius of 6.96×108 m. What is the average density of the Sun?

Jumping on a trampoline cause you to fly up in the air. What type of newton’s law is it ?

Answers

Answer:

The Third law

Explanation:

For every action there is an equal and opposite reaction.

Answer:

First Law

Explanation:

An object at rest (not moving) will stay at rest unless an unbalanced force acts on it.

An object in motion will stay in motion (in a straight line and at a constant speed) unless an unbalanced force acts on it.

You jump down on a trampoline and fly up in the air as a result.

Other Questions
How does this quote reflect the influence of Enlightenment ideas on the Founding Fathers? AThey had reservations about self-government. BThey were concerned with property rights.CThey supported individual liberties. DThey created a limited monarchy.BenchmarkSS.7.C.1.1 A chant melody with elongated rhythms sung beneath one or more fastermelodies is called:A. polyphonyB. Gregorian Chant.C. cantus firmus.D. Anglican chant. A runner is jogging in a straight line at a steady vr= 7.3 km/hr. When the runner is L= 2.1 km from the finish line, a bird begins flying straight from the runner to the finish line at vb= 29.2 km/hr (4 times as fast as the runner). When the bird reaches the finish line, it turns around and flies directly back to the runner After this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. The bird repeats the back and forth trips until the runner reaches the finish line. How far does the bird travel from the beginning (including the distance traveled to the first encounter Read and choose the option with the correct affirmative command for t to complete the sentence.________ de la casa a las ocho de la maana para hacer diligencias. Almorzamos a la una de la tarde; no llegues tarde. How many missionaries lived on a mission? 1. 4 2 7 how can limiting factors (density dependent and density independent) affect a population size? Which one should I choose What does the verb SER mean in English? what kind of barrier is information overload? Can someone help me with these questions. (Answer 1 or answer them all I don't care.) The troposphere is______.1.the warmest layer 2.responsible for weather and clouds 3.the coldest layer4.warmed by earths surface 5.the lowest layer (NEED HELP URGENTLY WILL MARK BRAINLIEST) LutherA. translated the Bible into GermanB. remained celibate until he diedC. believed communion of wine and wafer literally transformed into the bloody andbody of ChristD. became more timid as the Protestant Reformation continuedExplain your answer The level of toluene (a flammable hydrocarbon) in a storage tank may fluctuate between 10 and 400 cm from the top of the tank. since it is impossible to see inside the tank, an open-end manometer with water or mercury as the manometer fluid is to be used to determine the toluene level. one leg of the manometer is attached to the tank 500 cm from the top. a nitrogen blanket at atmospheric pressure is maintained over the tank contents. felder, richard m.; rousseau, ronald w.; bullard, lisa g.. elementary principles of chemical processes, 4th edition (page 81). wiley. kindle edition. $50 an hour is aA salaryB commissionC wageD pension Two liters of hydrogen gas are stored at apressure of 100 kPa. If the temperaturedoes not change, what will the volumeof the gas be when the pressure isdecreased to 25 kPa? According to the guidelines of good journalism, which of the following is correct: A. Fort Lauderdale, FloridaB. Fort Lauderdale, Fla.C. Fort Lauderdale, FLD. Ft. Lauderdale, Fla. 1)What number is 4 times as many as 25? Which two of the following sentences from thearticle include central ideas of the article?1. The most famous printedversion of the Declaration ofIndependence is emblazonedwith the words "In Congress,July 4, 1776" at the top.2. Interestingly, this documentwas not officially signed onthat celebrated date.3. The document, central tofounding the United States ofAmerica, was created througha process that took timecooperation and revision,4. It is believed that about 200copies were published on July5 and only about 25 still existtoday. 1French colonists exploited the Vietnamese land and people. What does "to exploit" mean?Help please well its a brain pop question The diameters of trees at a nursery are Normallydistributed with a mean of 2.5 inches and a standarddeviation of 0.5 inches.X-Calculate the Z-score for a tree that has a diameter of1.83 inches. Round the Z-score to the nearesthundredth, if necessary.The Z-score for a tree that has a diameter of 1.83 inchesis about...?