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
serg [7]
2 years ago
10

PLEASE HELP WITH THESE WILL GIVE BRAINLEIST

Physics
2 answers:
nikitadnepr [17]2 years ago
6 0

Answer:

When you rub your hands together, the action of scraping the

surface of your skin back and forth against each other causes

the molecules in your skin to move a little faster. The faster

that molecules move, the higher the temperature. So the

<u>friction</u> of rubbing your hands together makes them feel

warmer.

The force is <u>friction</u>. It's a force that opposes motion. It is present whenever two surfaces rub over each other, such as when you rub your hands together, or when you apply the brakes on a bike or in a car.

Explanation: I hope this helped you!

Sedaia [141]2 years ago
5 0

Answer: type of force is friction

Explanation:

You might be interested in
Which of the following tend to react by gaining 1 electron
Andrei [34K]
The correct answer should be C
8 0
3 years ago
Read 2 more answers
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward f
Katen [24]

Answer: T is greater

Explanation:

Since the elevator is moving against gravity more work will be done on the rope

T= m(g+a)

8 0
3 years ago
Read 2 more answers
How to convert to si and english using fraction style(picture is example)? 10 m/s to mph
emmasim [6.3K]
Hope this shows! It has all the equations for all of the problems u asked in the comments 

5 0
3 years ago
Box A has two moles of gas at a temperature of 400 K. Box B has one mole of gas at a temperature of 800 K. Which of the two gas
mina [271]
B I think if not sorry
8 0
3 years ago
A total Δν of 15 km/s is required to achieve an interplanetary mission. The proposed rocket has two stages. The first stage alon
AlexFokin [52]

Answer:

102000 kg

Explanation:

Given:

A total Δν = 15 km/s

first stage mass = 1000 tonnes

specific impulse of liquid rocket =  300 s

Mass flow rate of liquid fuel = 1500 kg/s

specific impulse of solid fuel = 250 s

Mass flow of solid fuel = 200 kg/s

First stage burn time = 1 minute = 1 × 60 seconds = 60 seconds

Now,

Mass flow of liquid fuel in 1 minute = Mass flow rate × Burn time

or

Mass flow of liquid fuel in 1 minute = 1500 × 60 = 90000 kg

Also,

Mass flow of solid fuel in 1 minute = Mass flow rate × Burn time

or

Mass flow of solid fuel in 1 minute = 200 × 60 = 12000 kg

Therefore,

The total jettisoned mass flow of the fuel in first stage

= 90000 kg +  12000 kg

= 102000 kg

3 0
3 years ago
Other questions:
  • The parking brake on a 1000 kg Cadillac has failed, and it is rolling slowly, at 1 mph , toward a group of small children. Seein
    9·1 answer
  • Torque can be calculated by multiplying the force ( n ) applied at 90 â to the lever arm at a distance ( m ) from the pivot poin
    8·2 answers
  • Is magnetic a form of energy
    15·1 answer
  • When a person's temperature reaches 104 degrees, the chances of survival are decreased dramatically. Group of answer choices Tru
    10·1 answer
  • How much work is done lifting a 5 kg ball from a height of 2 m to a height of 6 m? (Use 10 m/s2 for the acceleration of gravity.
    7·1 answer
  • A lightbulb is rated by the power that it dissipates when connected to a given voltage. For a lightbulb connected to 120 V house
    12·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST
    8·2 answers
  • One side of a seesaw carries a 21kg mass four meters from the fulcrum and a 25.5kg mass two meters from the fulcrum. To balance
    14·1 answer
  • The acceleration of the object may be zero and the velocity of the object may not be equal to zero correct or not
    9·1 answer
  • Can someone explain E=mc2<br> In FULL detail please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!