1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
spayn [35]
3 years ago
14

Consider a Cassegrain-focus, reflecting telescope. Images recorded at Cassegrain-focus will be:

Physics
1 answer:
Contact [7]3 years ago
3 0
B. Flipped compared to what is in the sky
You might be interested in
A 1.2 kg hammer slams down on a nail at 5.0 m/s and bounces off at 1.0 m/s. If the impact lasts 1.0 ms, what average force is ex
Delvig [45]

Answer:

Explanation:

Impulse results in a change of momentum

FΔt = mΔV

F = mΔV/Δt

The impulse acting on the hammer will equal the impulse acting on the nail

If we assume upward is the positive direction

F = m(vf - vi)/t

F = 1.2(1.0 - (-1.5)) / 0.001

F = 3000 N

7 0
2 years ago
These type of power plants are virtually pollution free
galben [10]
Geothermal, Wind ,Solar, and Water turbine.

I hope I helped.
6 0
3 years ago
In a tape recorder, the tape is pulled past the read-and-write heads at a constant speed by the drive mechanism. Consider the re
Irina-Kira [14]

Answer:

Torque decreases .

Explanation:

The tape is pulled at constant speed , speed v is constant , so there is

v = ω r where ω is angular speed and r is radius , As radius decreases , angular speed ω increases , So there is angular acceleration .

Let it be α . Let I be moment of inertia of reel .

Reel is in the form of disc

I = 1/2 m r²

I x α = torque

1/2 m r² x α =  torque

As the reel is untapped , its mass decreases , r also decreases , so torques also decreases .

6 0
3 years ago
To sterilize a 53.0 g glass baby bottle, we must raise its temperature from 25.0°C to 92.0°C. How much heat transfer (in J) is r
Stella [2.4K]

The heat energy required is 2983 J

Explanation:

When an amount of energy Q is supplied to a certain sample of substance of mass m, the temperature of the substance increases by an amount of \Delta T according to the equation :

Q=mC_s \Delta T

where

Q is the heat supplied

m is the mass of the object

C_s is the specific heat capacity of the substance

\Delta T is the change in temperature

For the glass bottle in this problem:

m=53.0 g

\Delta T = 92.0 - 25.0 =67.0^{\circ}C is the change in temperature

C_s = 0.84 J/g^{\circ}C is the specific heat of glass

Substituting into the equation, we find

Q=(53.0)(0.84)(67)=2983 J

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

8 0
3 years ago
•. Parking orbit is -
notsponge [240]

Answer:

Parking orbit is -

a. The path along which a plane travels

b. Orbit of a polar satellite

c. Orbit of geostationary satellite

d. Orbit of the earth.

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • The jovian moon with the most geologically active surface is
    13·1 answer
  • In order to move a bag of dog food across a 10 meter room you apply20 Newton’s of force how much work was done?
    15·1 answer
  • platform diving in the olympic games takes place at two heights: 5 meters and 10 meters. What is the velocity of a diver enterin
    8·1 answer
  • What unit can be used to measure the mass of a grain of salt
    10·1 answer
  • The unit of power is<br>Denved<br>Unit? Why​
    15·1 answer
  • Why were you able to see the effects of the magnetic fields using iron filings
    10·2 answers
  • Please I need help........
    9·2 answers
  • What is the rate of vibration measured in
    9·2 answers
  • Because insects are living and moving, what investigator's challenges in collecting insect evidence?
    13·1 answer
  • What is the equation for the potential energy stored in a spring when it is stretched or compressed?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!