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
Lorico [155]
3 years ago
8

3 A stationary car accelerates uniformly

Physics
1 answer:
Svetllana [295]3 years ago
8 0
22.2ms-2 because it jsut is
You might be interested in
A balloon filled with helium gas has an average density of rhob = 0.27 kg/m3. The density of the air is about rhoa = 1.23 kg/m3.
8_murik_8 [283]

Answer:34.84 m/s^2

   

Explanation:

Given

density of balloon \rho _{He}=0.27 kg/m^3

density of air \rho _a=1.23 kg/m^3

volume of balloon V=0.084 m^3

If balloon is rising then

F_b-mg=ma

where F_b=buoyant\ Force=\rho _a\times V\times g

mg=\rho _{He}\times V\times g=weight of gas

a=acceleration

\rho _a\times V\times g-\rho _{He}\times V\times g=\rho _{He}\times V\times a

\rho _a\times g-\rho _{He}\times g=\rho _{He}\times a

divide by \rho _{He}

\frac{\rho _a}{\rho _{He}}\times g-g=a

a=g(\frac{\rho _a}{\rho _{He}}-1)

a=g(\frac{1.23}{0.27}-1)

a=3.55\times 9.8

a=34.84 m/s^2

3 0
4 years ago
The early earth was much cooler than it is today. <br><br> a. True <br><br> b. False
Pie
This statement is true. Early earth was much cooler than it is today.

This is because the pollution as well as the population number was very small compared to nowadays population and pollution.
The pollution mainly is causing a decay in the ozone layer which protects the earth from uv rays. Thus, more of these rays enter the atmosphere and increase the temperature.
The increase in population along with the decrease in green areas leads to the increase in the percentage of carbon dioxide in the atmosphere, which again leads to an increase in the temperature.
5 0
3 years ago
What force controls the isostatic adjustment of Earth’s crust?
Alina [70]
The force that control the isostatic adjustment of the earth's crust is THE FORCE OF GRAVITY.
The isostatic adjustment of the earth crust refers to continuous movement of the earth crust or its deformation as a result of the force of gravity which act on it. The earth crusts that are located at the upper and a the core of the earth usually set up a balance between them which is called isostatic equilibrium.
6 0
3 years ago
Read 2 more answers
What units should be used when measuring the mass of a ladybug?
Aleks [24]
You could use grams hope this helps
3 0
3 years ago
What does the solar system consist of?
scZoUnD [109]
Planets, Sun, stars, plasma, and black matter
8 0
4 years ago
Read 2 more answers
Other questions:
  • An ideal gas at 25.8°C and a pressure 1.20 x 10^5 Pa is in a container having a volume of 1.00 L. (a) Determine the number of mo
    5·1 answer
  • An object in motion stays in motion, in a _______________________, unless acted on by an external _____________________________
    10·1 answer
  • A jet airliner moving initially at 406 mph (with respect to the ground) to the east moves into a region where the wind is blowin
    9·1 answer
  • State Newton’s law of universal gravitation in words. Then do the same with one equation
    5·1 answer
  • If you tethered a space station to the earth by a long cable, you could get to space in an elevator that rides up the cable much
    10·1 answer
  • A stone is dropped from a cliff 64 feet above the ground. Answer the following, using -32 ft/sec2 as the acceleration due to gra
    5·1 answer
  • Determine the magnitude of the force between two 42 m-long parallel wires separated by 0.03 m, both carrying 6.3 A in the same d
    10·1 answer
  • Which electromagnetic waves have the shortest wavelength and the highest frequency?
    7·1 answer
  • I need help <br> With this
    6·1 answer
  • 1. What is a conversion factor?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!