why

Q: How can a clear object be transparent and visible at the same time?

A: When we put the pure water in a extra clear glass, it makes transparent system of glass and water. W...

Q: One astronomical unit is the average distance between   A) Earth and the Sun B) Earth and the Moon C...

A: One astronomical unit is the average distance between sun and Earth.

Q: A rock is At t = 0, a particle leaves the origin with a velocity of 12 m/s in the positive x directi...

A:

Q: Use the picture below to answer the following questions. a. Which harmonic is shown in each of the s...

A: (a.) In the case of the first wave, there are only two complete wave loops. This case arises when th...

Q: A small 0.25g insect is caught in a spider-web. The web vibrates at 20 Hz.a. What is the spring cons...

A: Given : m = 0.25 g = 0.25 x 10-3 kg f = 20 Hz

Q: A DC series circuit includes a 9.0V battery and a 45.0 milli-Ohm resistor along with a switch. a.) c...

A: Given: Voltage(V)= 9V Resistance (R) = 0.045 ohms

Q: A charge of -3.0 µC is located at the origin; a charge of 4.0 µC is located at x =0.2 m, y=0; a thir...

A: (a) Let, F21=force on Q2 due to Q1 F21=kQ1Q2r2F21=9×109-3×10-64×10-60.22F21=2.7 N Let, F23=force on ...

Q: a stretched string of length L =  6 m resonates in three loops. what is the wavelength of the wave

A: Given: The length of the string is 6 m. The number of loops is 3.

Q: What is the acceleration of a 20 kg box if you push with a force of 100 N and there are 60 N of fric...

A:

Q: 5. Use the new equation from question 4 to solve this problem: a 50-kg woman wearing a seatbelt is t...

A: Given: The mass of the woman is 50 kg. The velocity of the car is 10 m/s. The time taken to stop the...

Q: In a playground ride kids ride in a horizontal 5m radius circle. max a=20m/s a. what is the period o...

A: Solution:  

Q: 6. A 215-g sample of a substance is heated to 330°C and then plunged into a 105 g aluminum calorimet...

A: Given: mass of the substance (m1)= 0.215 kg temperature of the substance (t1) =330 °C=603 K mass of ...

Q: A block is sliding UP an incline because someone gave it a push a moment ago. The slope of the incli...

A: given:block is sliding up angle of inclination = 10o friction coefficient = 0.20

Q: A straight section of a small river has a steady current of 2.0 km/h. Two docks on the same side of ...

A: a) The Bob’s time to reach the dock can be determined as, Here, v, d, and t represent Bob’s speed, ...

Q: The moon takes 27 days to revolve around the Earth. Calculate the mass of the Earth using the Moon-E...

A: The given values with suitable variables are listed below. Here, TM denotes the time period of the ...

Q: Whirl a 7kg weight on a 1.8 rope, the weight makes 1 rev in 1 second. What is the centripetal accele...

A:

Q: The information of brilliant colors in a thin soap film is a consequence of the phenomena of A) Pola...

A: The information of brilliant colors in a thin soap film is a consequence of the phenomena of Multipl...

Q: QUESTION3(11.38) An Atwood machine consists of two masses, mA= 6.9 kg and mB = 8.7 kg , connected by...

A: Given data The mass of object A is mA = 6.9 kg The mass of object B is m B = 8.7 kg The radius of th...

Q: 1 Joule is Equal to   A) 10^3 ergs B) 10^6 ergs C) 10^7 ergs D) 10^5 ergs

A: Units of Energy: SI unit: Joule CGS unit: Erg   The energy is given as, Here, m denotes the mass an...

Q: A light rope is attached to a block with a mass of 6kg that rests on a horizontal, frictionless surf...

A: Note: As per guidelines, we only answer three subparts of a question. Sorry for the inconvenience. G...

Q: Our Solar System is in the Milky Way galaxy. The nearest galaxy isAndromeda, a distance of 2x1022 m ...

A: Given Data: The distance between Milky Way galaxy and Andromeda is, r = 2 x 1022 m. The mass of Mil...

Q: Gasoline is useful in cars because it has   A) chemical potential energy B) electrical potential ene...

A: Gasoline is a type of fuel that consists mostly of organic compounds obtained from the fractional di...

Q: The electrical domestic tube light gives white fluorescent light because of   A) colision between mo...

A: the electrical domestic tube light gives white fluorescent light because of falling of ultra violet ...

Q: An object at rest may have   A) Momentum B) Potential energy C) Velocity D) Kinetic energy

A: Given that -  Object is at rest means velocity is zero.  v= 0    

Q: Why is a 12-volt household battery harmless, but the shock from a 12-volt car battery will kill you?

A: Voltage is the measure of the potential difference between 2 points. While current is the amount of ...

Q: 3 SSM WWW A bedroom bureau with a mass of 45 kg, includ- ing drawers and clothing, rests on the floo...

A: The mass of a bedroom bureau is, m=45 kg (a) The magnitude of the minimum horizontal force can be de...

Q: 1. Refer to the velocity-time graph of a jogger. The positive direction is away from the jogger's ho...

A: 1. The area under the speed time graph gives the distance traveled. 

Q: Water drives a waterwheel (or turbine) of radius 3.0 m as shown in the figure (Figure 1). The water ...

A:

Q: 7) A 0.62 kg mass oscillates according to the equation x=0.29sin(5.8t) where x is in meters and t is...

A: Given: Mass, m=0.62 kg Displacement, x=0.29sin5.8t   .... 1 Displacement of oscillating particle is ...

Q: Question 1: A wind turbine is rotating counterclockwise at an angular speed of w = 3.5ad and slows d...

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts fo...

Q: Why does water make a shirt darker?

A: Transparency: When an object is placed in the sight of an eye and a person is still be able to see t...

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.