PHYSICS HIGH SCHOOL

A red shift in the spectrum of the light from an object indicates the object is moving ____ you.a. away from
c. at a right angle from
b. toward
d. none of the above

Answers

Answer 1
Answer: A red shift in the spectrum of the light from an object indicates the object is moving a. away from you. A redshift occurs when light waves are stretched into lower frequencies. This is an example of the Doppler effect which makes use of the visible light spectrum where blue light has the highest frequency and red light has the lowest. This concept is often used by astronomers to measure the distances of galaxies and stars.
Answer 2
Answer:

A red shift in the spectrum of the light from an object indicates the object is moving a. away from you. A redshift occurs when light waves are stretched into lower frequencies. a.away from

Related Questions

Does an increased volume of a substance increase its density?
Ixchelt burns her tongue when she takes a sip of hot coffee from her mug. Which part of this example represents heat?
What is the resultant displacement of a dog looking for its bone in the yard, if the dog first heads 55° north of west for 10.0 m, and then turns and heads west for 5.00 m?
When fossil are burned, their chemical potential energy is converted into?
What increases as the temperature of a solid object rises?A. thermal energyB. potential energyC. volumeD. mass

Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.0677 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside?

Answers

Answer: Recall that

Work (W) = - e × ∆V

Where

Charge of electron= 1.6 × 10^ -19 c

And from the question we were given change in potential as = -0.0677V

Work = - (1.6 × 10^-19) × (-0.0677)

Work= 1.0832 × 10^-20J

Therefore the work done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside is 1.0832×10^-20

What is acceleration?a. change in velocity/change in time
b. change in distance/change in time
c. change in mass/change in volume
d. change in pressure/change in time

Answers

I'm pretty sure it's A.

A scientific model is based on assumptions that limit where and how the model can be applied. True False​

Answers

Answer:

i think it is true

Explanation:

An object is thrown downward with an initial velocity of 3 feet per second. The relationship between the distance s it travels and time t is given by s = 3t + 16t2. How long does it take the object to fall 70 feet?

Answers

Answer:2 s

Explanation:

Given

initial velocity u=3 ft/s

distance travel s=3t+16t^2

time taken to travel 70 feet

70=3t+16t^2

16t^2+3t-70=0

using x=(-b\pm √(b^2-4ac))/(2a) to get roots

t=(-3\pm √(3^2-4(16)(-70)))/(2\cdot 2)

t=2 and -2.19

only feasible time is 2 s

thus it requires 2 s to cover 70 feet

CAN SOMEONE HELP ME PLEASE

Answers

I think the answered is 50

One way in which researchers have attempted to restore vision is through implanting corneal cells in a person’s eye.

Answers

The correct answer for the question that is being presented above is this one: "FALSE." One way in which researchers have attempted to restore vision is not through implanting corneal cells in a person’s eye but rather through retinal implant which is known as the retinal prosthesis.
Other Questions
A 67.0 kg man sits in a 5.0 kg chair so that his weight is evenly distributed on the legs of the chair. Assume that each leg makes contact with the floor over a circular area with a radius of 1.10 cm. What is the pressure exerted on the floor by each leg?
If 500 C of electric charge passed through a light bulb in 2 min; what is the magnitude of the average electric current passing through the bulb?
What is the moment of the couple formed by the two forces applied to the corners b and d of a rectangular plate, given that p = 88-n? Resolve each force into horizontal and vertical components, and add the moments of the resulting couples?
What do you think a black hole is