(a) What is the force of gravity between two 1000-kg cars separated by a distance of 25 m on an interstate highway? (b) How does this force compare with the weight of a car?

Q: Calculate the force required to accelerate an electron from a speed of 100 m/s to 100 km/s in the…

A: Given: Mass of electron, m=9.1×10-31 kg Initial velocity of electron, vi=100 m/s Final velocity of…

Q: If gravity pulls you down toward the center of Earth with a force of 400 N, how much upward force…

A: The force of gravity acting on the person towards the Earth’s center is given as,

Q: If 1000 N force is required to accelerate an object to the rate of 5m/s?, what will be the weight of…

A: Given: Force applied, F=1000 N. Acceleration, a=5 m/s2. Require: Weight, w=?

Q: What is the weight of a person having a mass of 50kg? In Newton and in pounds?

A: Given mass of a person M = 50 kg we have to find out the weight of this person

Q: What is the force of gravity between two 1000 kg cars separated by a distance of 20 m on a highway?

A: The gravitational force between two objects can be obtain using the following equation,…

Q: When is your weight equal to mg?

A: The weight of an object is the measure of the force that a person or object experiences on a planet.…

Q: Why does a person in free fall experience weightlessness, while a person falling at terminal…

A: A person experiences weightlessness when the only force acting on him is the gravitational force and…

Q: Which has greater monetary value, a newton of gold on Earth or a newton of gold on the Moon?

A: Weight is,

Q: Walking on horizontal slippery ice can be much more tiring than walking on ordinary pavement. Why?

A: Introduction: A frictional force always acts opposite to the direction of motion if the surface has…

Q: Consider a mass of 1 kg accelerated 1 m/s2 by a force of 1 N. Show that the acceleration would be…

A:

Q: Three masses in a region where the acceleration due to gravity is 31.5 ft/s2 are as follows: m, is…

A: m1= 0.4 kg  m2 = 2kg m3 =50 pounds = 50 x 0.453 kg = 22.68 kg. Total mass = m1 +m2+m3 =0.4+2+22.68 =…

Q: What is the dominant force between astronomical objects? Why are the other three basic forces less…

A: Concept: The telescope is the instruments used in the universe. It is the key instrument. The moon,…

Q: What is the strongest force on Earth?

A: Given:  Strongest force on earth

Q: What is mass of the object . If the weight of the object on the moon is 60 N ?

A:

Q: What distinguishes mass from weight?

A: Mass is defined as the amount of substance in an object, it remains constant always, irrespective of…

Q: Newton's laws of motion hold true... in all frames of reference. only in inertial frames of…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What would a person weigh on the moon where the acceleration due to gravity is 1.67m/s, if their…

A: Given data: Acceleration due to gravity on the moon (g) = 1.67 m/s2 Mass (m) = 75 kg Required:…

Q: The force of gravity is 6 times greater on the earth than it is on the moon. What is the weight of a…

A: Given The force of gravity is 6 times greater on the earth than it is on the moon mass of a man = m…

Q: The force of gravity between two objects is 64 N. The separation between them increases by a factor…

A: Given data:  Force of gravity between two objects (F) = 64 N Original distance between objects = r…

Q: 10. The force with which gravity pulls downward upon an object. a. Weight b. Pull of gravity c. Mass

A: In nature every object has mass, as it is a fundamental quantity. The force with which gravity pulls…

Q: What is the law that says for every action there is an equal and opposite reaction? O Newton's First…

A: Newton described the motion of an object using three laws.

Q: What is the resultant of a pair of 1-pound forces at right angles to each other?

A: Given:Two forces of magnitude 1 pound.Angle between the forces = 90o

Q: According to Newton’s law of gravitation, what is the magnitude of the force between the Sun and…

A:

Q: What is the weight of a box that has a mass of 54 kg if it were placed of the moon, whose…

A: Given data- mass of box m=54 kg gravitational attraction on earth gearth=9.81 m/s2 so gravitational…

Q: If Juliet’s mass is 320 kg and Romeo’s mass is 80kg and the gravitational force of attraction…

A: The gravitational force of attraction between Romeo and Juliet is given by F=Gm1m2r2

Q: What is your own mass in kilograms? Your weight in newtons?

A: The mass in kilogram is 45kg.

Q: How much would an 82 kg man weigh on the moon where the acceleration due to gravity is 1/6 that on…

A:

Q: What measures the weight of a person in an accelerating lift or in a spacecraft?

A: Weight is the resultant downward force experienced by a body or a person. The value of the resultant…

Q: A student has a mass of 25 kg. If he stands on a scale in an elevator that is accelerating downward…

A: mass of student (m) = 25 kg Acceleration (a) = 2 ms2

Q: Two objects, each having a mass of 100kg, are 6m apart. What is the force of gravity between these…

A:

Q: Weightlessness doesn’t mean that an astronaut is not being acted upon by the gravitational force.…

A: Weightlessness doesn’t mean that an astronaut is not being acted upon by the gravitational force.…

Q: Any interaction between objects, which when unopposed will result to a change in motion Mass O…

A: We are asked to name the physical quantity that causes change in motion

Q: How does the force of gravity on a raindrop compare with the air drag it encounters when it falls at…

A: The force of gravity acts on the raindrop in vertically downward direction whereas the air drag…

Q: Question 1 m = 1.7 kg, a = 2.5 m What is the Force? Round your answer to the tenths place.

A: Given that the value of mass(m) and acceleration (a). Then We have to determine the value of…

Q: You jump up into the air. Which of the following is propelling you up into the air? Gravity Your…

A:

Q: The force of gravity on planet X is 167% of that found on Earth. If a person weighs 333N on Earth,…

A: The force of gravity on planet X F' is 167% of force of gravity on Earth F  . i.e.         F' =…

Q: A player at rest catches the ball , velocity of 15 m/s , The mass of the ball is 12 kg, what must be…

A: Given data :  Initial velocity of the ball (mB) = 15 m/s Mass of the ball (mB) = 12 kg Initial…

Q: If an astronaut in full gear has a weight of 850 N on Earth, how much will the astronaut weigh on…

A: Given: The weight of astronaut on earth is W=850 N. The expression for mass of astronaut on earth…

Q: Where must an object be placed between the Earth and the Moon in order for there to be no net…

A: The gravitational forces on an object duo to earth and due to the moon are equal.…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.