The force between two charges separated by a distance d is F. If the charges are pulled apart to a distance 4d, the force of interaction between two charges becomes a. 4F b. F/4 c. F/12 d. F/16

Q: How much potential energy due to gravity would a person have if they are standing on top of the…

A:

Q: Calculate the minimum work required to transport a mass of 1.0 kg from the surface of the Earth to…

A:

Q: An object with a total of 1.3 x 10⁵ J of gravitational potential energy on a 35 m tall cliff would…

A: Given:-  gravitational potential energy ( U ) = 1.3 x 10⁵ J  height of cliff (h) = 35m

Q: Gravitational potential energy is the stored energy due to the position (height)of an object.…

A: Gravitational potential energy is the energy possessed or acquired by an object by virtue to…

Q: 7 5 6 3 ·x

A:

Q: What is work

A: Work is said to be done when a force applied to an object moves that object. Work is defined as a…

Q: A 1000kg car traveling at 35 m/s takes 9 m to stop under full braking The same car under similar…

A: Given data *The mass of the car is m = 1000 kg *The initial speed of the car is u = 35 m/s *The…

Q: Q10) What is the angle between the two vectors A= 5i+ 6j and B = 31- 3/? A) 109° B) 95 C) 120° D)…

A: Given data The vector A is given as A→=5i^+6j^. The vector B is given as B→=3i^-3j^.

Q: A 121 lb. weight is being help up by a block and tackle pulley system of 3 attached pulleys also…

A: Here, 3 strings are connected with the block, and each has tension 2T. Draw the free body diagram.

Q: Which of the following is the Sl unit for gravitational electric powe Watt Work O Kilogram Meter…

A: Gravitational electric power also termed as Gravitricity power. Gravitational electric power is form…

Q: 14.3 N 11.7 N 24.7 N 30.5 N F1 12.3 N F2 3.4 N

A:

Q: kWh = ___________ a) 3.6 × 106 J b) 3.6 × 105 J c) 0.36 × 106 J d) 0.36 × 105 J

A: A

Q: 3 What is the velocity of a 2 kg object dropped from a height of 20 m when it hits the ground, in…

A: Given that-Mass, m= 2 kgHeight, h= 20 mBy using conservation of energyWe can write-Kinetic energy=…

Q: Which one of the following is NOT the unit of power? Watts Íb/s Nm/s O J/s

A: Power is rate of change of energy.

Q: Find the gravitational potential energy of a light that has a mass of 14 kg and is 8 m above the…

A: Given data :                 Gravitational pull     =    g                     Height     =    h…

Q: What is the speed of electricity?

A: The word electricity  generally refers to the movement of free electron within conductor in presence…

Q: Q20) What is the angle between the two vectors Ä = 5i + 6j and B = 3i – 3j? A) 109° B) 95° C) 120°…

A: Given that vector A= 5i =6j and vector B = 3i - 3j. find the angle between vector A and vector B ?

Q: The work W done when lifting an object varies jointly with the mass m of the object and the square…

A: Answer:- The problem statement suggests that the work W varies jointly with the mass m and the…

Q: Determine the resultant for the forces showing in figure (15) . at paint (0). Q 16 F Fig. (16)

A:

Q: I z( max)

A: Solution: When maximum current is flowing through the Zener diode, the current through the load will…

Q: O Kilogram O Newton O Second Watt Meter Work None of the choices Joule

A: The SI unit of power is Watt. The unit of any type of power, irrespective of its origin such as…

Q: Question 3 and 4

A:

Q: 3. Which requires a greater power rating? Raising a 4 kg flag atop a 25 meter flagpole in 90 seconds…

A: power (P) is the amount of work done per unit time Work = Force × Distance W = F×d Then,  P =W/t =…

Q: If an object of mass 46 kg has a kinetic energy of 225 j, what is its velocity?

A:

Q: +5 V 1 kN

A: According to the Ohm's law the potential difference V across a resistor of resistance R  carrying a…

Q: > Find force 0 = 40° d = 10 mm- V = 35 m/s U = 15 m/s D = 20 m

A:

Q: 5) The Zarya Module (mass = 1.93x10 4kg) was launched in 1998 at the Baikonur Cosmodrome in…

A:

Q: The unit of Power (P) is

A: We have to answer the unit of Power (P)

Q: A person walks first at a constant speed of 5m/s along a straight line from point A to point B and…

A: Let 'd' be the distance between point A and point B. Constant speed to person from A to B: v1 = 5…

Q: 3] The angle between the vector r = 2i- j- 3k and the positive z-axis is:

A:

Q: 3. Refer back to Figure 8.1. For which types of electromagnetic radiation is the atmosphere of the…

A: Required : For which type of electromagnetic radiation, is the atmosphere of the Earth completely…

Q: Step 2. Refer back to Figure 8.1. For which types of electromagnetic radiation is the atmosphere of…

A: For which type of the electromagnetic radiation is the atmosphere of the Earth totally opaque.

Q: W. AB.Z Option 1 Option 2 .CD Option 3 Option 4

A: direction of x and z are different , so they are not equal  Both direction and magnitude of AB and z…

Q: 35 mph in horsepower  35mph in watts

A: mph is the units of speed which is miles per hour and horsepower is the unit of power  also watt is…

Q: S V1 + vx dx

A: This can be solved using the Simpson rule for calculation of integrals

Q: Identify the object that has more potential energy than kinetic energy.         a…

A: The objective of the question is to identify the object that has more potential energy than kinetic…

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.