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
ch4aika [34]
3 years ago
5

Where did the element heavier than hydrogen and helium come from?

Physics
2 answers:
k0ka [10]3 years ago
7 0

Answer:

After the hydrogen in the star's core is exhausted, the star can fuse helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Elements heavier than that are formed in supernovas.

Explanation:

Snezhnost [94]3 years ago
6 0

They were produced inside stars.

You might be interested in
Long ding dong what it do?
Andre45 [30]

Answer:

nun wbu

Explanation:

3 0
3 years ago
Read 2 more answers
1. A heat lamp is designed to keep food and other things warm. Would it also make a good tanning lamp? Why or why not?
NemiM [27]
1. becuase it is so hot that it could tan or be used to keep warm.
4 0
3 years ago
Read 2 more answers
Which is more reliable—using a manual stop watch or using light gates?<br> Explain.
Kitty [74]
Light gates are more reliable. When using a manual stop watch, it is difficult to stop it at an exact time. A light gate is able to detect when an object passes through a 'gate' with the infrared transmitter and receiver. 
7 0
3 years ago
The weight of a hydraulic barber's chair with a client is 2100 N. When the barber steps on the input piston with a force of 44 N
guajiro [1.7K]

Answer:

\frac{r_1}{r_2}=6.9

Explanation:

According to Pascal's Law, the pressure transmitted from input pedal to the output plunger must be same:

P_1 = P_2\\\\\frac{F_1}{A_1}=\frac{F_2}{A_2}\\\\\frac{F_1}{F_2}=\frac{A_1}{A_2}\\\\\frac{F_1}{F_2}=\frac{\pi r_1^2}{\pi r_2^2}\\\\\frac{F_1}{F_2}=\frac{r_1^2}{r_2^2}

where,

F₁ = Load lifted by output plunger = 2100 N

F₂ = Force applied on input piston = 44 N

r₁ = radius of output plunger

r₂ = radius of input piston

Therefore,

\frac{r_1^2}{r_2^2}=\frac{2100\ N}{44\ N}\\\\\frac{r_1}{r_2}=\sqrt{\frac{2100\ N}{44\ N}} \\\\\frac{r_1}{r_2}=6.9

4 0
2 years ago
In an aqueous solution where the H+ concentration is 1 x 10-6 M, the OH concentration must be:
vesna_86 [32]

Answer:

D. 1×10⁻⁸ M

Explanation:

[H⁺] [OH⁻] = 10⁻¹⁴

(1×10⁻⁶) [OH⁻] = 10⁻¹⁴

[OH⁻] = 1×10⁻⁸

6 0
3 years ago
Other questions:
  • Which of the following is an example of a population?
    11·2 answers
  • Two planes, A and B, are flying at the same altitude. If their velocities are vA = 500 km&gt;h and vB = 700 km&gt;h such that th
    15·1 answer
  • A turtle crawls at a constant speed, moving 4.77 m in 19.5 s. What was the turtle's velocity?
    15·2 answers
  • A box-shaped metal can has dimensions 6 in by 2 in by 12 in high. All of the air inside the can is removed with a vacuum pump. A
    15·1 answer
  • Fluorine and chlorine molecules are blamed for<br>​
    6·1 answer
  • How much work in joules must be done to stop a 920-kg car traveling at 90 km/h?
    12·1 answer
  • Match the correct center and scale factor to each figure.
    12·1 answer
  • A 65.0 kg skier slides down a 37.20 slope with mu = 0.107.<br><br>What is the friction force?
    8·1 answer
  • A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's i
    13·1 answer
  • A scalar quantity has
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!