All categories

3 years ago

Infrared telescopes are usually placed on high-flying airplanes or on satellites in space __________

Physics

1 answer:

Yuliya22 [10]3 years ago

3 0

Answer:

In order to improve visibility

Explanation:

Infrared telescopes are made using infrared cameras that contain infrared detectors which are solid-state and are maintained at very cold (cryogenic) temperatures

Infrared radiation is absorbed by water vapor which is present in the Earth's atmosphere, leading to the limitation of the use of infra red telescopes at high altitudes such as mountains, high flying planes or satellites

You might be interested in

An astronomer sees two stars in the sky. Both stars are equally far from Earth, but the first star is brighter than the second s

Dmitrij [34]

It is a younger then the second star.

6 0

3 years ago

Read 2 more answers

Two forces are applied to a tree stump to pull it out of the ground. Force A has a magnitude of 2410 newtons (N) and points 36.0

Anarel [89]

Answer:

The magnitude of the resultant force is 6201 N

The direction of the resultant force is 72°

Explanation:

Please find the attached file for explanation;

8 0

3 years ago

Students are given the following information about a 2.0 kg, motorized toy boat on water. what net force is exerted on the boat

Natasha_Volkova [10]

The motorized toy boat experiences a net force of 0 N between 4 s and 8 s.

The motorized toy boat moves at 8 m/s (u) at 4 s and at 8 m/s (v) at 8 s. We can calculate the acceleration (a) in that period using the following kinematic expression.

$a = \frac{v-u}{\Delta t} = \frac{8m/s-8m/s}{8s-4s} = 0 m/s^{2}$

The object with a mass (m) of 2.0 kg experiences an acceleration of 0 m/s². We can calculate the net force (F) in that period using Newton's second law of motion.

$F = m \times a = 2.0 kg \times 0 m/s^{2} = 0 N$

The motorized toy boat experiences a net force of 0 N between 4 s and 8 s.

Learn more: brainly.com/question/13447525

6 0

3 years ago

If your car was traveling at 60 mph, that is about 27m/s. How long would it take a car traveling at 27m/s to slow to a stop, if

RUDIKE [14]

Answer:

vf=at+v0. vf=0

-v0=at

t=-v0/a=(-27m/s)/(-8m/s^2)=3.4s

6 0

3 years ago

Potential energy and kinetic energy are created when work is done to change a position (PE) or a state of motion (KE). Ignoring

lapo4ka [179]

Answer:

(b) Both are the same

Explanation:

When work is done to change a position or a state of motion, then the potential and kinetic energy are created. Then the energy gets transferred to an object. Its means the work is done.

The work done to change a position of an object is called potential energy while the work done to change a state of motion of an object is called kinetic energy.

We know that the total energy of a system remains constant. It is called the law of conservation of energy.

So, the work done is equal to the amount of PE or KE created. Hence, the correct option is (b).

3 0

4 years ago