And observer reviews for identical objects that are traveling at speed close to the speed of light in their legs be used to rank the objects according to their speeds A. No the Lankes of the four objects should be the same regardless of the speed B. Yes the shortest object is traveling the fastest C. Yes the longest object is traveling the fastest D. No the length of each object demands on the frame of reference of the observer

Answers

Answer 1

Answer:

C :)

Explanation:

Related Questions

Which types of waves requires matter to carry energy? electromagnetic waves only mechanical waves only electromagnetic and mechanical waves longitudinal and electromagnetic waves

Answers

Answer: Mechanical waves

Explanation:

Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.

Answer:

Mechanical waves

Explanation:

edge 22'

How many hydrogen atoms are there in the following compound: 4CHA (2 points)
Select one:
a 4
b. 8
c. 12
d. 16

Answers

Answer:

Explanation:

The number 4 that is infront of the CHA(4CHA) means to say that there are 4C 4H and 4A

Tip:the number infront of a equation is call the coefficient

Which choice most accurately defines resistance and voltage of a circuit?

Resistance can be defined as the potential difference between two points in a circuit, while voltage is the amount of electrons moving through a point in a circuit every second.

Voltage can be defined as the potential difference between two points in a circuit, while resistance is the amount of electrons moving through a point in a circuit every second.

Voltage can be defined as the potential difference between two points in a circuit, while resistance opposes the flow of electrons in a circuit.

Resistance can be defined as the potential difference between two points in a circuit, while voltage opposes the flow of electrons in a circuit.

Answers

Answer:

Resistance can be defined as the potential difference between two points in a circuit, while voltage is the amount of electrons moving through a point in a circuit every second.

Explanation:

A boy on a chairlift moving parallel to the mountain slope at a speed of +15 m/s watches a skier going straight down the mountain with a speed of -35 m/s. What is the velocity of the skier relative to the chairlift? A. -50 m/s B. -35 m/s C. -20 m/s D. +15 m/s E. +50 m/s

Answers

Answer:

A. -50 m/s

Explanation:

Given

Velocity of Chairlift = +15m/s

Velocity of Skier = -35m/s

Required

Determine the velocity of the skier relative to the chairlift

Basically, relative velocity is the difference between the two velocities;

Having said that;

Relative velocity of the skier relative to the chairlift = Velocity of the Skier - Velocity of the Chairlift

Relative velocity of the skier relative to the chairlift = -35m/s - (+15m/s)

Open bracket

Relative velocity of the skier relative to the chairlift = -35m/s - 15m/s

Relative velocity of the skier relative to the chairlift = -50

what are the physical changes on water

Answers

1. Ice melting involves a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change. 2. Water boiling is a physical change as water molecules vibrate faster, they enter the gas phase and become water vapor.

The physical changes is the water freezing and the water evaporating.

Plz Help me with this

Answers

Answer:

Cools ; size

Explanation:

The rate at which magma cools determines the size of the crystals in the new rock. Igneous rocks are formed from the cooling and solidification of molten magma which finds its way to the surface or depth of very low pressure beneath the surface. This place or depth of cooling of magma affects the cooling rate and hence the size of the crystals formed. Igneous rocks formed at depths below the surface have more time to cool and allows more time for Crystal growth and hence produce coarse grained crystal grains called Intrusive igneous rocks which have significantly larger crystals than those formed on the surface which cools rapidly and allowing very little time for crystal growth giving rise to the formation of fine grained crystals and are called extrusive igneous rocks.

A -0.00125 C charge is placed 3.62 m from a +0.00333 C charge. What is the magnitude of the electric force between them?
Remember, magnitudes are positive.
[?] N

Answers

Answer: 2858.7726N

Explanation:

Given that :

Charge 1 (q1) = -0.00125 C

Charge 2 (q2) = +0.00333 C

Distance (r) = 3.62 m

According to columb's Law: The magnitude of the force between any two charged objects :

Fe = (Kq1q2) / r^2

Coloumb's constant(k) = 9×10^9 Nm^2/C^2

Fe = (9×10^9 * 0.00125 * 0.00333) / 3.62^2

Fe = (0.0000374625 * 10^9) / 13.1044

Fe = 37462.5 / 13.1044

Fe = 2858.7726N

Answer:

2858.7726 N

Explanation:

acellus

a ball is projected with a certain angle with initial velocity u. it covers horizontal range R. With what initial velocity it must be projected keeping the angle of projection same so its horizontal range becomes 2.25R

Answers

Answer:

1.5 u

Explanation:

The range equation is:

R = u² sin(2θ) / g

When u = v, R = 2.25 R.

2.25 R = v² sin(2θ) / g

2.25 u² sin(2θ) / g = v² sin(2θ) / g

2.25 u² = v²

1.5 u = v

Other Questions

what is the measure of SR? was the schliefen plan successful Please select the word from the list that best fits the definition Inexhaustible and renewable resources are used less than____resources. A.nonrenewable B.resourcesC.renewable resourcesD.turbinesE.geothermalF.cellsG. biomass "Neon signs need 12,000 V to operate. If a transformer operates off a 240 V source and has 1000 turns in its primary coil, how may turns must the secondary coil have When a company constructs a building, the cost of the building includes materials and labor but not design fees, building permits, or insurance during construction. a. True b. False True or False.Der Krankenpfleger ist eine Frau. Nadia built a robot to filter air and water efficiently. She expects the robot to filter more than 343 liters ofair and water while using less than 49 Joules of energy.12A + 8W > 343 represents the number of minutes the robot filters air A and water IV to hiter morethan 343 liters of air and water.3A +41V < 49 represents the number of minutes the robot hiters air and water while using less than 49Joules of energyDoes the robot meet both of Nadia's expectations by filtering air for 20 minutes and filtering water for 15minutes?Choose 1 answer.A. The robot meets both of Nadia's expectations.B. The robot filters the expected amount of air and water, but it doesn't use the expected amountof energyC. The robot uses the expected amount of energy, but it doesn't filter the expected amount of airand water.D. The robot doesn't meet either of Nadia's expectations. 2) 2.5 mol of an ideal gas at 20 oC under 20 atm pressure, was expanded up to 5 atm pressure via; (a) adiabatic reversible and (b) adiabatic irreversible process. Calculate the values of w, q, U, H for each process. (Cv = 5 cal / mol.K 5/2 R; R 2 cal / mol.K) (Please find the desired values by making the corresponding derivations The structural unemployment rate is 1.7 percent, the frictional unemployment rate is 2.6 percent, and the economy's current unemployment rate is 3.9 percent. The economy is in:_______. a. long-run equilibrium. b. a recessionary gap producing more than Natural Real GDP. c. a recessionary gap producing less than Natural Real GDP. d. an inflationary gap producing Natural Real GDP. e. an inflationary gap producing more than Natural Real GDP. PLZ IM ON THE CLOCK!!!!! A sports memorabilia store makes $6 profit on each football it sells and $5.50 profit on each baseball it sells. In a typical month, it sells between 35 and 45 footballs and between 40 and 55 baseballs. The store can stock no more than 80 balls total during a single month. What is the maximum profit the store can make from selling footballs and baseballs in a typical month? $457.50 $460.00 $462.50 $572.50 Which of the following is an exterior angle of triangle BHE? Yes or no For each price in the following table, calculate the firm's optimal quantity of units to produce, and determine the profit or loss if it produces at that quantity, using the data from the previous graph to identify its total variable cost. Assume that if the firm is indifferent between producing and shutting down, it will produce. Price Quantity Total Revenue Fixed Cost Variable Cost Profit(Dollars per polo) (Polos) (Dollars) (Dollars) (Dollars) (Dollars)25.00 520,000 40.00 520,000 65.00 520,000If the firm shuts down, it must incur its fixed costs (FC) in the short run. In this case, the firm's fixed cost is $520,000 per day. In other words, if it shuts down, the firm would suffer losses of $520,000 per day until its fixed costs end (such as the expiration of a building lease).This firm's __________ that is, the price below which it is optimal for the firm to shut down is:________ Someone please explain I need help with this question! solve k -19=b-6 What is the slope of the line x = 4? When the price of erasers increases from $1.50 to $2.50, the quantity demanded of pencils is unchanged. The cross-price elasticity of demand between erasers and pencils is 3.) [15 points] A physics teacher is on the west side of a small lake and wants to swim across and up at a point directly across from his starting point. He notices that there is a current in the lake andthat a leaf floating by him travels 4.2m [S] In 5.0s. He is able to swim 1.9 m/s in calm water,(a) What direction will he have to swim in order to arrive at a point directly across from his position? FIRST GETS BRAINLLEST What is the perimeter of the track, in meters? Use = 3.14 and round to the nearest hundredth of a meter. Cost reduction is still the number one priority for many supply chain executives, according to the MHI and Deloitte survey. Select one: True False In the given diagram, find the values of x, y, and z.Oax = 20, y = 21, z = 20Ob.x = 64, y = 21, z = 64Oox = 64, y = 21, z = 20Odx = 115, y = 115, z = 64