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
viktelen [127]
3 years ago
11

I need help with these questions ☺️☺️

Physics
1 answer:
Mariana [72]3 years ago
6 0

Answer:

1. well the value may vary because of different reactions to the technology because its new to a lot of people but to younger ones its something normal and something we cant live without but with older ones its something that they have lived without for most of there life.

Explanation:

You might be interested in
How much force is required to pull a spring 3.0 cm from
avanturin [10]

Answer:

I know that T= kx where T is the tension which equaka the force og gravity = mg = 1.37 * 10 = 13.7 x is the elongation of the spring so the length after dangling the object minus the original length.

I hope it helps

plz let me know if it is wrong or right.

4 0
3 years ago
A college dorm room measures 14 ft wide by 13 ft long by 6 ft high. What is the air in it under normal conditions?
kirza4 [7]

Complete question:

A college dormitory room measures 14 ft wide by 13 ft long by 6 ft high. Weight density of air is 0.07 lbs/ft3. What is the weight of air in it under normal conditions?

Answer:

the weight of the air is 76.44 lbs

Explanation:

Given;

dimension of the dormitory, = 14 ft by 13 ft by 6 ft

density of the air, = 0.07 lbs/ft³

The volume of the air in the dormitory room = 14 ft x 13 ft x 6 ft

                                                                          = 1092 ft³

The weight of the air = density  x  volume

                                   = 0.07 lbs/ft³  x  1092 ft³

                                   = 76.44 lbs

Therefore, the weight of the air is 76.44 lbs

6 0
2 years ago
What's the value of 57,281 joules in Btu? A. 54.3 Btu B. 14.2 Btu C. 28.9 Btu D. 37.7 Btu
Alex Ar [27]
I'm quite sure it is A
8 0
3 years ago
Read 2 more answers
A heat engine exhausts 8900 j of heat while performing 2800 j of useful work. part a what is the efficiency of this engine?
Anuta_ua [19.1K]
Given: Heat Qout means useful work = 2800 J

           Heat Qin = 8900 J

Required; Efficiency = ?

Formula: Efficiency = Qout/Qin = x 100%

                               = 2800 J/8900 J = 0.3146 X 100 %

               Efficiency = 31.46%


7 0
3 years ago
An ant takes 5 secs to complete one round
saveliy_v [14]

Answer:

hi

Explanation:

hlo hlo hloxhdydydhfjci

4 0
2 years ago
Other questions:
  • What is the sun classified as on the hertzsprung-russell diagram?
    6·2 answers
  • A heavy crate applies of 1500 N on a 25-m^2 piston . The smaller piston is 1/30 the size of the larger one . what force is neede
    15·2 answers
  • How fast must a cyclist climb a 6.0º hill to maintain a power output of 0.25 hp? Neglect work done by friction, and assume the m
    6·1 answer
  • If a reaction is exothermic and produces large quantities of heat reaching equilibrium, its equilibrium constant will be
    11·2 answers
  • A 1kg of compound a with specific heat capacity of 1000J is heated increasing its temp by 1 degree. How much energy has been add
    13·1 answer
  • Which of the following is the kinetic rate equation for the addition-elimination mechanism of nucleophilic aromatic substitution
    10·1 answer
  • Explain what physicists mean when they say that the de Broglie wavelength relates to the probability distribution wave function.
    13·1 answer
  • What can cause the formation of a magnetic domain?
    12·2 answers
  • A concave mirror of focal length 10cm forms an inverted image of 40cm from the mirror and 4cm high. Determine the position and s
    11·1 answer
  • If a participant were holding two different weights in their hands and the jnd for a 10-gram weight was 1 gram, what should the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!