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
cestrela7 [59]
3 years ago
9

Which describes the experiment of becquerel and the curies

Physics
1 answer:
sergiy2304 [10]3 years ago
3 0

The correct answer is D. Becquerel showed that uranium gave off radioactivity, and the Curies discovered other radioactive elements.

You might be interested in
If you run a complete loop around an outdoor track of length 400 m in 100 s, find your(a) average velocity and (b) average speed
laila [671]

Answer:

a) 0 m/s

b) 4 m/s

Explanation:

The average velocity would end up being 0 because it is displacement over time and the displacement here is 0. However, speed is total distance over time which here is 400/100 so it is 4.

5 0
3 years ago
A peregrine falcon is the fastest animal in the world. When it dives, it can accelerate to
svp [43]

The speed of the falcon is 144 km/h

Explanation:

The speed of a body is a scalar quantity telling how fast the object is moving, without giving any information about its direction.

It can be calculated as:

speed = \frac{d}{t}

where

d is the distance covered

t is the time taken

In this problem, the falcon has a speed of

speed = 40 m/s

We want to convert it into km/h. Let's keep in mind that:

1 km = 1000 m

1 h = 3600 s

Therefore, we convert as follows:

speed = 40 \frac{m}{s} \cdot \frac{3600 s/h}{1000 m/k}=144 km/h

Learn more about speed:

brainly.com/question/8893949

#LearnwithBrainly

5 0
3 years ago
A ___ can only take place when the moon is in the new moon phase
Kisachek [45]
An eclipse i believe is the answer?
5 0
3 years ago
Consider two concentric spheres whose radii differ by t = 1 nm, the "thickness" of the interface. At what radius (in nm) of sphe
Law Incorporation [45]

Answer:

3.85 nm

Explanation:

The volume of a sphere is:

V = 4/3 * π * r^3

The volume of a shell is the volume of the big sphere minus the volume of the small sphere

Vs = 4/3 * π * r2^3 - 4/3 * π * r1^3

Vs = 4/3 * π * (r2^3 - r1^3)

If the difference between the radii is 1 nm

r2 = r1 + 1 nm

Vs = 4/3 * π * ((r1 + 1)^3 - r1^3)

Vs = 4/3 * π * ((r1 + 1)^3 - r1^3)

Vs = 4/3 * π * (r1^3 + 3*r1^2 + 3*r1 + 1 - r1^3)

Vs = 4/3 * π * (3*r1^2 + 3*r1 + 1)

The volme of the shell is equall to the volume of the inner shell:

4/3 * π * (r1^3) = 4/3 * π * (3*r1^2 + 3*r1 + 1)

r1^3 = 3*r1^2 + 3*r1 + 1

0 = -r1^3 + 3*r1^2 + 3*r1 + 1

Solving this equation electronically:

r1 = 3.85 nm

7 0
3 years ago
Se necesita fuerza continua para el movimiento continuo?
zhenek [66]

¿Se necesita fuerza continua para un movimiento continuo? No exactamente, ya que la fuerza que se aplica para mantener un objeto en movimiento solo se usa para que la fuerza de fricción pueda ser contrarrestada. Si un astronauta arrojara, digamos, una computadora portátil al espacio durante una caminata espacial (por qué arrojar una tableta perfectamente buena en el esquema interminable del cosmos, no lo sé), viajaría con una velocidad constante para siempre, a menos que golpea algo También podría reemplazar la computadora portátil con Voyager 2, que se mantuvo en movimiento y ahora está fuera de nuestro sistema solar. Esto se debe a que el espacio está mayormente vacío y no habría ninguna fuerza de fricción que actúe sobre esa roca. A menos que sea golpeado por un asteriodo o algo así, lo que haría una pregunta física diferente.

Espero que esto ayude, ¡TENGA UN DÍA BENDITO Y MARAVILLOSO! ¡Y un gran fin de semana de Superbowl! :-)

- Cutiepatutie ☺❀❤

8 0
3 years ago
Other questions:
  • Which example is NOT a part of the electromagnetic spectrum?
    15·2 answers
  • What is the difference between the initial position and the final position of an object?
    6·1 answer
  • Confirm if this is correct or not. If it isn't correct, please correct it.
    7·1 answer
  • What is the volume of the shape below?
    10·1 answer
  • A chemical reaction takes place in which energy is absorbed. Arrange the characteristics of the reaction in order from start to
    9·2 answers
  • Neptune is a planet that...
    6·2 answers
  • If a train conductor is describing the speed of the train as well as the direction the train is going, then the train conductor
    7·1 answer
  • Please,,,,,,,,,,,,,,,,,,,
    12·1 answer
  • ____ is a chemical messenger released by virus infected cells
    10·1 answer
  • Energy is the capacity to do work or
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!