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
kirill115 [55]
3 years ago
14

Match the events related to the formation of the universe with the stages during which they occurred.

Physics
1 answer:
igomit [66]3 years ago
8 0

Answer:

does this even make sense

Explanation:

You might be interested in
9. a. Determine the mass of a football which has a weight of 0.80 N on a planet where the gravitational field strength is 2 N/kg
krek1111 [17]

Answer:

m = 0.4 [kg]

Explanation:

Weight is considered as a force and this is equal to the product of mass by gravitational acceleration.

W=m*g\\

where:

W = weight = 0.8 [N]

m = mass [kg]

g = gravity acceleration 2[N/kg]

Therefore:

m=W/g\\m = .8/2\\m = 0.4 [kg]

5 0
2 years ago
Hello I need some help.Two guys enetr in a room,a guy come from outside(there is cold)and another guy come from a room(there is
slavikrds [6]
I would feel warm because putting cold and hot together is gonna be warm because with the cold it is cooling down the hot to make warm
5 0
3 years ago
A nonconducting container filled with 25 kg of water at 23°C is fitted with a stirrer, which is made to turn by gravity acting o
Paul [167]

Explanation:

Given that,

Weight of water = 25 kg

Temperature = 23°C

Weight of mass = 32 kg

Distance = 5 m

(a). We need to calculate the amount of work done on the water

Using formula of work done

W=mgh

W=32\times9.8\times5

W=1568\ J

The amount of work done on the water is 1568 J.

(b). We need to calculate the internal-energy change of the water

Using formula of internal energy

The change in internal energy of the water equal to the amount of the  work done on the water.

\Delta U=W

\Delta U=1568\ J

The  change in internal energy is 1568 J.

(c). We need to calculate the final temperature of the water

Using formula of the change internal energy

\Delta U=mc_{p}\Delta T

\Delta U=mc_{p}(T_{2}-T_{1})

T_{2}=T_{1}+\dfrac{\Delta U}{mc_{p}}

T_{2}=23+\dfrac{1568}{25\times4.18\times10^{3}}

T_{2}=23.01^{\circ}\ C

The final temperature of the water is 23.01°C.

(d). The amount of heat removed from the water to return it to it initial temperature is the change in internal energy.

The amount of heat is 1568 J.

Hence, This is the required solution.

6 0
2 years ago
What two factors will most likely change the speed of a mechanical wave?
iVinArrow [24]
Period and wavelength
8 0
3 years ago
Which of the following least represents an negative impact on Earth caused mostly by humans?
Vinvika [58]

Answer:

D

Explanation:

plz mark brainliest

3 0
2 years ago
Read 2 more answers
Other questions:
  • Calculate the acceleration if you push with a 20-N horizontal force against a 2-kg block on a horizontal friction- free air tabl
    5·1 answer
  • An astronomer would most likely use the doppler effect to question 12 options: 1) measure the color of a star. 2) measure the pa
    10·2 answers
  • A professional racecar driver buys a car that can accelerate at 5.9 m/s2. The racer decides to race against another driver in a
    5·1 answer
  • Kinetic friction acts on a baseball player sliding into first base. Will the player's velocity change?
    11·1 answer
  • HELP ASAP PLEASE!!! A car starting from rest, accelerates constantly at 8m/s2 for 6s. How far did it travel during this time per
    13·2 answers
  • If the acceleration of an object is zero at some instant in time, what can be said about its velocity at that time? 1. It is neg
    11·1 answer
  • 4. A graduated cylinder is used<br>to measure<br>a. volume<br>b. weight<br>d. inertia<br>c. mass​
    11·1 answer
  • A 35.0-g object connected to a spring with a force constant of 40.0 N/m oscillates with an amplitude of 4.00 cm on a frictionles
    11·1 answer
  • If an object is an irregularly shaped solid and it is dropped into a graduated cylinder and it displaces 25 mL of water and has
    11·1 answer
  • A cellphone charger has a transformer with
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!