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
Snowcat [4.5K]
2 years ago
6

A car starts from rest and accelerates to a speed of 30 m/s in a time of

Physics
1 answer:
Vilka [71]2 years ago
4 0

average acceleration is 10m/s2

Explanation:

average acceleration= final velocity- starting velocity/time

x=30-0/3

x=30/3

x=10

You might be interested in
How producer gas is formed? write down its one use
alisha [4.7K]
Produce gas is a fuel gas that is used in industries for heating or boiling. It is produced by passing a stream of air or steam through burning coal. The major composition of the fuel gas is carbon monoxide due to incomplete combustion or the presence of water.
4 0
3 years ago
1. Gwen exerts a 16 N horizontal force as she pulls a 32N sled across a cement
PSYCHO15rus [73]

Answer:

3.6 N   Kinetic friction

Explanation:

3 )   Ff = uk * Fn = 3.6 N

5 0
2 years ago
A student attaches a block to a vertical spring of unknown spring constant so that the block-spring system will oscillate if the
chubhunter [2.5K]

Answer:

x axis

Explanation:

3 0
2 years ago
Read 2 more answers
From what height must an oxygen molecule fall in a vacuum so that its kinetic energy at the bottom equals the average energy of
alexandr1967 [171]

Answer:

The  value is  h  = 11930 \ m

Explanation:

From the question we are told that

    The  temperature is  T  =  300 \  K

     

Generally the root mean square speed of the  oxygen molecules is mathematically represented as

        v  =  \sqrt{\frac{3 *  R  *  T }{M} }  =  \sqrt{ 2 *  g  *  h }

Here  R is the gas constant with a value  R  =  8.314 \  J\cdot K^{-1} \cdot \  mol^{-1}

    M  is the molar mass of oxygen molecule with value M  =  0.032 \  kg /mol

So  

     \frac{3 *  8.314   *  300 }{0.032}   =  2 *  9.8  *  h

=>    h  = 11930 \ m

   

4 0
3 years ago
Does the sun fuse hydrogen into helium or vice versa?
NikAS [45]

Hydrogen has the smaller, lighter, simpler nucleus.
Helium has the larger, heavier, more complex nucleus.
Hydrogen nuclei are fused to form helium nuclei. 
When that happens, energy is released. 

6 0
3 years ago
Other questions:
  • What information did mendeleev have about the elements he organized into a periodic table
    8·1 answer
  • You have a stopped pipe of adjustable length close to a taut 62.0 cm, 7.25 g wire under a tension of 4310 N. You want to adjust
    12·1 answer
  • The average distance between the Sun and a certain planet is approximately 2.3 x 1014 inches. Which of the following is closest
    14·1 answer
  • Preheating Air by Steam for Use in a Dryer. An air stream at 32.2°C is to be used in a dryer and is first preheated in a steam h
    7·1 answer
  • Where do most water molds and downy wildews live?
    15·1 answer
  • The earth pulls the moon towards it because of the earth has more mass and therefore moe
    10·1 answer
  • What is potential energy? Give at least three examples, and explain why they have potential energy.
    7·2 answers
  • For the first challenge, Lex demands that Superman use the weight of a small stone to lift a boulder. Understanding the principl
    13·1 answer
  • A nuclear power plant operates at 79 percent of its maximum theoretical (Carnot) efficiency between temperatures of 700° and 330
    8·1 answer
  • How do you calculate kinetic energy without velocity
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!