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]
4 years ago
5

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

Physics
2 answers:
k0ka [10]4 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]4 years ago
6 0

They were produced inside stars.

You might be interested in
A power station with an efficiency e generates W watts of electric power and dissipates D J of heat energy each second to the co
Andrews [41]

Answer: 13.94 tons/s

Explanation:

On adding heat energy to a substance, the temperature would be changed by a particular amount. This relationship between heat energy and temperature is often different for each material. The specific heat, is a value that describes how they relate.

Heat energy = mass flow rate * specific heat * Δ T

Q = MC (ΔΦ)

Heat energy, Q= 3.5*10^8J

Mass flow rate, M= ?

Specific heat, C= 4184j/KgC

Change in temperature, ΔΦ= 6°C

M = Q/CΔΦ

M = (3.5*10^8)/4184*6

M = 13942kg/s

M = 13.94 tons/s

3 0
3 years ago
Series circuits are characterized by the fact that there is a single pathway by which charge can travel. True or false?
Ulleksa [173]
I Think Its True My  Dude Or Dudette
.
Hope this helps
.
Zane
6 0
3 years ago
Read 2 more answers
How many milliliters of water at 25.0°C with a density of 0.997 g/mL must be mixed with 162 mL of coffee at 94.6°C so that the r
Andre45 [30]

Answer:

The volume of water is 139 mL.

Explanation:

Due to the Law of conservation of energy, the heat lost by coffee is equal to the heat gained by the water, that is, the sum of heats is equal to zero.

Q_{coffee} + Q_{water} = 0\\Q_{coffee} = - Q_{water}

The heat (Q) can be calculated using the following expression:

Q=c \times m \times \Delta T

where,

c is the specific heat of each substance

m is the mass of each substance

ΔT is the difference in temperature for each substance

The mass of coffee is:

162mL.\frac{0.997g}{mL} = 162g

Then,

Q_{coffee} = - Q_{water}\\c_{c} \times m_{c} \times \Delta T_{c} = -c_{w} \times m_{w} \times \Delta T_{w}\\m_{c} \times \Delta T_{c} = -m_{w} \times \Delta T_{w}\\m_{w} = \frac{m_{c} \times \Delta T_{c}}{-\Delta T_{w}} \\m_{w}=\frac{162g \times (62.5 \°C - 94.6 \°C ) }{-(62.5 \°C - 25.0 \°C)} \\m_{w} = 139 g

The volume of water is:

139g.\frac{1mL}{0.997g} =139mL

7 0
4 years ago
Name 2 things that have gears in them
Anvisha [2.4K]

BICYCLE

MOTOR BIKES

CARS

THEY ARE THE VEHICLES WHICH HAS GEARS IN THEM.

6 0
4 years ago
If humans are the most complex creature, does that mean they have the most number of chromosomes?
Bezzdna [24]
Yes. Either way though, humans have more chromosomes than any other species.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A small ranger vehicle has a soft, ragtop roof. When the car is at rest, the roof is flat. When the car is cruising at highway s
    15·1 answer
  • ANALOGY: Mars bar: planet as Milky Way: __________
    6·1 answer
  • How many zebras automatically survive the first interaction with the lions in Generation 1?
    10·1 answer
  • If you increase the frequency of a sound wave four times what will happen to its speed
    13·2 answers
  • The tsunami described in the passage produced a very erratic pattern of damage, with some areas seeing very large waves and near
    7·1 answer
  • What is the difference between longitudinal and transverse waves
    7·1 answer
  • Jane is a crime scene investigator. She wants to reveal small particles with high contrast. So, she positions the forensic lamp
    7·1 answer
  • In 1965, a group of students wore black arm bands to school in protest of American policies in Vietnam. Administrators banned th
    13·1 answer
  • The system below has a friction force of 25 N acting on the cart which 8 kg. The mass hanging off the edge has a mass of 6 kg. F
    7·1 answer
  • How do you calculate the change in speed?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!