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
KATRIN_1 [288]
3 years ago
7

Thorium ____ has 90 protons and 137 neutrons.

Physics
1 answer:
Paha777 [63]3 years ago
5 0

Answer:

Thorium 227 (also known as Radioactinium)

You might be interested in
Which statement correctly describes gravity?
Advocard [28]

Answer:

a force that attracts matter to the earth

Explanation:

depends on where you are the gravity can be different in space there is no gravity on Earth there is , that's why when you jump you come back down

5 0
3 years ago
Argon makes up 0.93% by volume of air. Calculate its solubility (in mol/L) in water at 20°C and 1.0 atm. The Henry's law constan
vladimir2022 [97]

Answer:

S= 1.40x10⁻⁵mol/L

Explanation:

The Henry's Law is given by the next expression:

S = k_{H} \cdot p (1)

<em>where S: is the solubility or concentration of Ar in water, k_{H}: is Henry's law constant and p: is the pressure of the Ar </em>

<u>Since the argon is 0.93%, we need to multiply the equation (1) by this percent:</u>

S = 1.5 \cdot 10^{-3} \frac{mol}{L\cdot atm} \cdot 1.0atm \cdot \frac{0.93}{100} = 1.40 \cdot 10^{-5} \frac{mol}{L}

Therefore, the argon solubility in water is 1.40x10⁻⁵mol/L.

Have a nice day!          

8 0
3 years ago
What is the total momentum of a 30 kg object traveling left at 3 m/s and a 50 kg object traveling at 2 m/s to the right?
madam [21]

Answer:

there are 25 kg objective travelling at 2m/s to the right.

4 0
2 years ago
What is a car doing as it rounds a curve
andriy [413]

Answer:

its direction is changing

4 0
3 years ago
How much net force is required to accelerate a 2000 kg car at 3.00 m/s^2
andrezito [222]

The net force required to accelerate a car is 6000 N.

Force is defined as the product of the mass and acceleration of the body. Force is used to changing the velocity that is to accelerate an object or a body of a particular mass. The unit of Force is Newton or kg m/s^2.

The formula used to calculate the net force is :

F = ma

where, F = Force

m = mass = 2000 kg

a = acceleration = 3.00 m/s^2

∴ F = 2000*3

F = 6000 N

Thus, to accelerate the car at 3.00 m/s^2 of mass 2000 kg net force required is 6000 N.

To learn more about force,

brainly.com/question/1046166

6 0
1 year ago
Other questions:
  • Two resistors connected in series (R1, R2) are connected to two resistors that are connected in parallel (R3,R4). The series-par
    9·1 answer
  • What is the following product<br> √10 * √10<br><br> 10<br> 10√10<br> 100<br> 2√10
    9·2 answers
  • You could use an elevator or stairs to lift a box to the tenth floor. Which has greater energy? Why?
    15·1 answer
  • Suppose you're using an operant conditioning approach to teach someone how to use a bow and arrow. You begin by teaching your st
    14·1 answer
  • The triceps muscle in the back of the upper arm extends the forearm.
    12·1 answer
  • Which of the following has the greatest number of particles A) 1 mole of Na B)22.990g of Na C) 1 mole of Be D) 9.012 g of Be E)
    11·2 answers
  • A 2.0-kg mass is projected from the edge of the top of a 20-m tall building with a velocity of 24 m/s at some unknown angle abov
    13·1 answer
  • 7. If a hummingbird hovers 30 cm in front of a window, what will it see?
    15·1 answer
  • neon has 10 electrons, 2 in the inner level and 8 in it's outermost level. how many valence electrons do neon atoms have?​
    15·2 answers
  • A test charge gains 10 joules of potential energy as it moves through an electric field. It starts its movement at point 1 and e
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!