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
Sauron [17]
3 years ago
11

The Earth's magnetic field protects the planet from _____.

Physics
1 answer:
OLga [1]3 years ago
8 0
The answer you're looking for is the last option. "ultraviolet radiation." Hope this proves helpful!

You might be interested in
2. A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?
STatiana [176]
We have that the gravitational energy is given by: U=mgh where m is the mass of the object (in kg), g is the gravitational acceleration and h is the height of the object (in meters). Hence, h=U/(m*g) where g=9.8 m/s^2. Thus, h=20 m if we substitute.
Similarly, substituting in b, we have that the height of the model plane is 10 m. The kinetic energy is given by: K=\frac{1}{2} *m*u^2 where u is the speed of the object. Hence, solving for u we have u=\sqrt{2K/m}. Substituting, we have that u=5m/s.
5 0
3 years ago
Read 2 more answers
A space-walking astronaut has become detached from her spaceship. She's floating in space while holding a wrench. She is thinkin
ser-zykov [4K]

Answer:

please find the solution which is defined as follows:

Explanation:

Throughout the opposite direction, she not able to throw her tool-belt. In this scenario, she will be sending her floating through her ship. Unless interrupted, it could refer to Newton's The rule of it in motion remains in motion. Consequently, if they throw it one way because there are no molecules to interrupt your course, you can continue to go the other way.

6 0
4 years ago
If a train travels 500 kilometers from Stockholm to
o-na [289]

Hello,

Average speed is total distance divided by total time. From the problem, our total distance is given as 500 kilometers and given time is 5 hours. Therefore, the average speed is:

\displaystyle{v_\text{average}=\sum_{i=1}^n \dfrac{s_i}{t_i}}\\\\\displaystyle{v=\dfrac{500\ \text{km}}{5 \ \text{h}}}\\\\\displaystyle{v=100 \ \text{km/h}}

Therefore, the average speed is 100 km/h. Please let me know if you have any questions!

4 0
1 year ago
4. A tuning fork is held over a resonance tube, and resonance occurs when the surface of the water is 12 cm below the top of the
Mrac [35]

As we know that speed of sounds is given as

v = 332 + 0.6t

here we know that

t = 23 degree C

now from above equation we will have

v = 332 + (0.6)(23)

v = 345.8 m/s

now we also know that distance between two consecutive resonance length is half of the wavelength

L_2 - L_1 = \frac{\lambda}{2}

34 - 12 = \frac{\lambda}{2}

\lambda = 44 cm

now we know that

frequency = \frac{speed}{wavelength}

f = \frac{345.8}{0.44} = 786 Hz

so frequency will be 786 Hz

7 0
3 years ago
Which material would you expect to have greater resistance, plastic or silver? Explain your answer.
olganol [36]

Answer:

plastic

Explanation:

because it is an insulator that it is a poor conductor of electricity.

8 0
3 years ago
Other questions:
  • Which is a FALSE statement about elements?
    8·2 answers
  • This gland lets your body use energy
    14·1 answer
  • Calculate the acceleration of a galloping horse going from 2 m/s to 12 m/s in 2 seconds.
    5·1 answer
  • Someone help me and tell me how u know it that answer!
    12·2 answers
  • If the pig can move the car 30 meters in 10 seconds then what is the speed for the car
    9·2 answers
  • A hollow ball, rolls down a hill that is 9 meters high. What is the velocity at the bottom of the hill?
    7·1 answer
  • Define kinetic energy and derive its relation.
    5·1 answer
  • Which of the following concepts helps explain the modern technology used in 3D films?
    7·1 answer
  • Explain how a transistor behaves as a switch
    11·2 answers
  • Hola buen día por favor alguien me puede ayudar por favor1. Dos cargas puntuales q1=+4μC y q2=+ 6μC están separadas por 10 cm. U
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!