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
goldenfox [79]
2 years ago
6

find the following Distance, Time, and Velocity in the problem; a track runs a 100-m dash in 11 seconds. What is his average vel

ocity during the run? (please include explanation and formula thankyou)
Physics
1 answer:
kow [346]2 years ago
5 0

Answer:

9.09m/s

Explanation:

now velocity of a body is measure of the distance covered by a body in a particular time frame,so simply its the rate at which distance is covered,

thus mathematically V(velocity)=d(distance covered)/t(time it takes to cover the distance)

hence V=100m/11s

which is V=9.09m/s.

so this means the runner covers 9.09m in every second ,<em> </em><em>well</em><em> </em><em>not</em><em> </em><em>bad</em><em> </em><em>lol</em><em> </em><em>!</em>

You might be interested in
A single loop of current is immersed in an externally applied uniform magnetic field of 3 Tesla oriented in the positive y direc
vlabodo [156]

Answer:

mu=12Tm^2

Explanation:

the magnetic moment mu of a single loop is given by:

\mu = I A B

where I is the current, B is the magnetic field and A is the area of the loop. By replacing we obtain:

\mu=(0.5A)(4m*2m)(3T)=12Tm^2

hope this helps!!

6 0
3 years ago
Was the Big Bang a loud explosion? Why?
Sholpan [36]

Answer:

bc it was a universal explosion and It started the future

Explanation:

FACTS

6 0
3 years ago
Read 2 more answers
Show that rigid body rotation near the Galactic center is consistent with a spherically symmetric mass distribution of constant
irakobra [83]

To solve this problem we will use the concepts related to gravitational acceleration and centripetal acceleration. The equality between these two forces that maintains the balance will allow to determine how the rigid body is consistent with a spherically symmetric mass distribution of constant density. Let's start with the gravitational acceleration of the Star, which is

a_g = \frac{GM}{R^2}

Here

M = \text{Mass inside the Orbit of the star}

R = \text{Orbital radius}

G = \text{Universal Gravitational Constant}

Mass inside the orbit in terms of Volume and Density is

M =V \rho

Where,

V = Volume

\rho =Density

Now considering the volume of the star as a Sphere we have

V = \frac{4}{3} \pi R^3

Replacing at the previous equation we have,

M = (\frac{4}{3}\pi R^3)\rho

Now replacing the mass at the gravitational acceleration formula we have that

a_g = \frac{G}{R^2}(\frac{4}{3}\pi R^3)\rho

a_g = \frac{4}{3} G\pi R\rho

For a rotating star, the centripetal acceleration is caused by this gravitational acceleration.  So centripetal acceleration of the star is

a_c = \frac{4}{3} G\pi R\rho

At the same time the general expression for the centripetal acceleration is

a_c = \frac{\Theta^2}{R}

Where \Theta is the orbital velocity

Using this expression in the left hand side of the equation we have that

\frac{\Theta^2}{R} = \frac{4}{3}G\pi \rho R^2

\Theta = (\frac{4}{3}G\pi \rho R^2)^{1/2}

\Theta = (\frac{4}{3}G\pi \rho)^{1/2}R

Considering the constant values we have that

\Theta = \text{Constant} \times R

\Theta \propto R

As the orbital velocity is proportional to the orbital radius, it shows the rigid body rotation of stars near the galactic center.

So the rigid-body rotation near the galactic center is consistent with a spherically symmetric mass distribution of constant density

6 0
3 years ago
Spacecrafts have landed on the surface of which planet?
ki77a [65]
I'm pretty sure its Venus!!!
7 0
3 years ago
a motorcycle starts from rest covers 200 meter distance in 6 second calculate final velocity and acceleration​
Ivanshal [37]

Explanation:

s = ut + 1/2 a t^2

200 = 0 * 6 + 1/2 * a * (6)^2

200 = 1/2 * a * 36

200 = 18 a

a = 200/18

a= 11.1m/sec^2

v = u + at

v = 0 + 11.1 * 6

v = 66.6m/s

hope it helps you

3 0
2 years ago
Other questions:
  • A person drops a brick from the top of a building. The height of the building is 400 m and the mass of the brick is 2.00 kg. Wh
    12·1 answer
  • Violet light has a wavelength of 4.10X10-12m what is the frequency
    7·1 answer
  • Which type of rock is formed from cooling molten rock?
    9·1 answer
  • One gram of salt in 100 liters of water could be considered a _______________________ solution.
    15·2 answers
  • How many earths could fit inside jupiter
    7·1 answer
  • How to reword this? What does it mean?
    12·1 answer
  • Plz plz plz answer for the 7th question I'll die if I don't do it I am bad in physics plz plz plz
    9·1 answer
  • True or false an.organic compound contains the elements carbon
    8·2 answers
  • Sound travels through water at speed of "1.43" km/s.how far does sound travel in 1000 seconds?​
    14·1 answer
  • During which time does Jamal have the greatest momentum?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!