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
Nataliya [291]
3 years ago
5

What are three tecnologies tht are used to observe things that are difficult to visit?

Physics
1 answer:
Pachacha [2.7K]3 years ago
3 0
Telescopes, because we can visually visit the moon lol.
Camera Pills, so we can see the inside of a person

You might be interested in
A hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. after a short rest at the lake, she hi
3241004551 [841]

Let's choose east as positive x-direction and south as positive y-direction. We can resolve the two displacement along these two axes:

- Displacement 1 (3.5 km, 55^{\circ} south of west

d_{1x}=-(3.5 km)( cos 55^{\circ})=-2.01 km

d_{1y}=(3.5 km)( sin 55^{\circ})=2.87 km

- Displacement 2 (2.7 km, 16^{\circ} east of south

d_{2x}=(2.7 km)( sin 16^{\circ})=0.74 km

d_{1y}=(2.7 km)( cos 16^{\circ})=2.60 km

So, the total components on the two directions are

d_x = -2.01 km+0.74 km=-1.27 km

d_y=2.87 km+2.60 km=5.47 km

And the magnitude of the hiker's resultant displacement is

d=\sqrt{(1.27 km)^2+(5.47 km)^2}=5.6 km

8 0
3 years ago
Read 2 more answers
Two positive charges are placed near each other what happens between the charges
Musya8 [376]

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

Answer: coll

Explanation:

6 0
3 years ago
Read 2 more answers
Which best describes the two main functions of transistors in circuits? resisting and amplifying measuring and switching resisti
Marizza181 [45]
The two main function of a transistor is to amplify or switch electronic signals. The switch is two options: on / off. The amplification function is a change in voltage.
8 0
3 years ago
A satellite in geostationary orbit is used to transmit data via electromagnetic radiation. The satellite is at a height of 35,00
Aleksandr-060686 [28]

Answer:

Explanation:

We have the following relation between power, P and intensity, I

I = P/(4*pi*r^2)

= 10^3/(4*pi*(35000*10^3))

= 6.5*10^-14 W/M^2

We also have the following relationship between electric field and electromagnetic radiation thus

I = (ceE^2)/2

Hence E = \sqrt{2I/ce}

substituting the values of I, c and e, we have

7*10^-6 V/m

3 0
3 years ago
An object thrown in the air has a velocity after t seconds that can be described by v(t) = -9.8t + 24 (in meters/second) and a h
marin [14]

Answer and Explanation: Kinetic energy is related to movement: it is the energy an object possesses during the movement. it is calculated as:

K=\frac{1}{2}mv^{2}

For the object thrown in the air:

K=\frac{1}{2}.2.[v(t)]^{2}

K=(-9.8t+24)^{2}

K=96.04t^{2}-470.4t+576

Kinetic energy of the object as a function of time: K=96.04t^{2}-470.4t+576

Potential energy is the energy an object possesses due to its position in relation to other objects. It is calculated as:

U=mgh

For the object thrown in the air:

U=9.8.2.h(t)

U=9.8.2.(-4.9t^{2}+24t+60)

U=-96.04t^{2}+470.4t+1176

Potential energy as function of time: U=-96.04t^{2}+470.4t+1176

Total kinetic and potential energy, also known as mechanical energy is

TME = 96.04t^{2}-470.4t+576 + (-96.04t^{2}+470.4t+1176)

TME = 1752

The expression shows that total energy of an object thrown in the air is constant and independent of time.

6 0
2 years ago
Other questions:
  • Physical science!!!!!!helpppp
    9·1 answer
  • What's the answer ? Please Help
    15·1 answer
  • What is geothermal power
    12·2 answers
  • 1.9 kg block of iron at 24 °C is rapidly heated by a torch such that 14 kJ is transferred to it. What temperature would the bloc
    11·1 answer
  • in an experiment, all participants receive a treatment but those in the control group recieves a false treatments
    14·1 answer
  • For a given ideal gas if it temperature is constant the pressure of the gas is proportional ??
    12·2 answers
  • Write three example for types of energy​
    6·2 answers
  • Which of the following best describes an action-reaction pair?
    12·2 answers
  • Which of the following choices is not an example of climate?
    14·1 answer
  • PLEASE HELP ME I AM TIMED!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!