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
lbvjy [14]
2 years ago
12

Alan travels 100 km in 5hrs. Find his average speed in km/h​

Physics
2 answers:
fgiga [73]2 years ago
5 0

Answer:

<h3>The answer is 20 km/hr</h3>

Explanation:

The average speed of an object given the time and distance covered can be found by using the formula

a =  \frac{d}{t}  \\

where

d is the distance

t is the time

From the question

d = 100 km

t = 5 hrs

We have

a =  \frac{100}{5}  \\

We have the final answer as

<h3>20 km/hr</h3>

Hope this helps you

Neporo4naja [7]2 years ago
3 0
25 km/h hope this helps
You might be interested in
A proton enters a uniform magnetic field of strength 1 T at 300 m/s. The magnetic field is oriented perpendicular to the proton’
scZoUnD [109]

A charged particle moving in a magnetic field experiences a force equal to:

\vec{F}=q\vec{v}\times \vec{B}

Thus, the magnitude of the force that the proton experiences is given by:

F=qvBsin\theta

The magnetic field is perpendicular to the proton's velocity, therefore, we have \theta=90^\circ. Replacing the given values, we obtain:

F=1.6*10^{-19}C(300\frac{m}{s})(1T)sin(90^\circ)\\F=4.8*10^{-17}N

3 0
3 years ago
What is the required force to bring a 1550 kg vehicle moving at 32 m/s to a stop in a distance of 45 m?
Vilka [71]
The answer is 9 i think.
8 0
3 years ago
An airplane with an airspeed of 120 km/h has a heading of 30 degree east of North in a wind that is blowing toward the east at 6
lesya692 [45]

Answer:

Explanation:

Velocity of plane relative to ground V_pg = ?

Given the velocity in vector form ,

velocity of plane relative to air V_pw = 120 cos30 i + 120sin30j

V_wg = 60 i

V_pg = V_pw +V_wg

= 120 cos30 i + 120sin30j + 60i

= 164 i + 60 j

magnitude

=251 km / h

=

8 0
3 years ago
Vector A has magnitude of 15.0 m/s and is 75° counter-clockwise up from the x-axis. What are the x- and y-components of the vect
LiRa [457]

Answer:

x component 3.88 y- component 14.488

Explanation:

We have given a vector A which has a magnitude of 15 m/sec which is at 75° counter-clock wise ( anti-clock wise) from x -axis which is clearly shown in bellow figure

Now x-component will be 15 cos75°=3.8822 ( as it makes an angle of 75° with x-axis )

y- component will be 15 sin 75°=14.488

For verification the resultant of x and y component should be equal to 15

So resultant =\sqrt{14.488^2+3.88^2}=15

3 0
3 years ago
A 2.00-m rod of negligible mass connects two very small objects at its ends. The mass of one object is 1.00 kg and the mass of t
8090 [49]

Answer:

<h2> 4kg</h2>

Explanation:

Step one:

given

length of rod=2m

mass of object 1 m1=1kg

let the unknown mass be x

center of mass<em> c.m</em>= 1.6m

hence 1kg is 1.6m from the <em>c.m</em>

and x is 0.4m from the <em>c.m</em>

Taking moment about the <em>c.m</em>

<em>clockwise moment equals anticlockwise moments</em>

1*1.6=x*0.4

1.6=0.4x

divide both sides by 0.4 we have

x=1.6/0.4

x=4kg

The mass of the other object is 4kg

3 0
3 years ago
Other questions:
  • A toaster oven uses67,500 joules of energy in 45 seconds to toast a piece of bread what is the power of the oven
    12·1 answer
  • A skier is skiing down a slope on a mountain. Is mechanical energy conserved?
    6·2 answers
  • An electron in a(n) __________ subshell experiences the greatest effective nuclear charge in a many-electron atom.
    11·1 answer
  • A bigger pushing force does make the brick slide across the table.write down one thing that the sliding brick will do to the sur
    7·2 answers
  • True or false: You can calculate a three variable equation knowing only one of the variables.​
    10·1 answer
  • A doctor counts 68 heartbeats in 1.0 minute. What are the corresponding period and frequency of the heart rhythm
    12·1 answer
  • Ratio of acceleration due to grabity and universal gravitational constant
    14·1 answer
  • How do I figure out 7.68+3.18÷12=​
    14·1 answer
  • Which term describes energy stored inside the nucleus of an atom?
    10·1 answer
  • How can the length of day affect temperatures on Earth?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!