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
Colt1911 [192]
3 years ago
13

What is the velocity of a cheetah that sprints 100 meters west in 4 seconds?​

Physics
1 answer:
Ronch [10]3 years ago
4 0

Answer:

25 m/s

Explanation:

v = d / t

v = 100 m / 4 s

v = 25 m/s

You might be interested in
The moon Ariel orbits Uranus at a distance of 1.91 x 108 m once every 2.52 days. Use that data to calculate the mass of Uranus.
PIT_PIT [208]

Mu = 8.66 × 10^25 kg

Explanation:

centripetal force = gravitational force

m \frac{ {v}^{2} }{r}  = (grav.const) \frac{m \times mu}{ {r}^{2} }

where

m = mass of moon Ariel

mu = mass of Uranus

r = radius of Ariel's orbit

v = Ariel's velocity around Uranus

To find the velocity, we need to find the circumference of the no orbit and then divide it by the period (2.52 days):

circumference = 2πr = 2π×(1.91 × 10^8 m)

= 1.2 × 10^9 m

period = 2.52 days × (24 h/1 day)×(3600 s/1 hr)

= 2.18 × 10^5 s

v = (1.2 × 10^9 m)/(2.18 × 10^5 s)

= 5.5 × 10^3 m/s

(5.5 × 10^3 m/s)^2/(1.91 × 10^8 m) = (6.67 × 10^-11 m^3/kg-s^2)Mu/(1.91 × 10^8 m)^2

Solving Mu,

Mu = 8.66 × 10^25 kg

4 0
3 years ago
Conditional probability involves events that are independent. true or false?
kiruha [24]
Its false I got It right .


3 0
3 years ago
The uniform 12 ft pole is hinged to the truck bed and released from the vertical position as the truck starts from rest with an
Anna35 [415]

Answer:

w = 0.886 rad / s

Explanation:

Angular and linear variables are related

       a = α r

where a is the linear acceleration, α the angular acceleration and r the radius of gyration

         α = a / r

the angular velocity we can find it

         w² = w₀² + 2 α θ

the initial angular velocity is zero, the angles to be horizontal is

    θ = π/ 2  rad

     

we substitute

          w = √ 2 a / r  θ

we calculate

          w = √ (2 3/12 π/2)

          w = 0.886 rad / s

7 0
3 years ago
I need help with this answer
7nadin3 [17]

Answer:

double replacement

Explanation:

sorry if im wrong

8 0
3 years ago
In a circus act, a 70 kg clown is shot from a cannon with an initial velocity of 17 m/s at some unknown angle above the horizont
EleoNora [17]

Answer:

K_{2}=7302.4J

Explanation:

Given the initial velocity of the clown, his mass and final height we can calculate the final kinetic energy using the <em><u>conservation of total mechanical energy</u></em>

K_{1}+U_{1}=K_{2}+U_{2}

K_{2}=K_{1}+U_{1}-U_{2}

K_{2}=\frac{1}{2}mv_{1}^{2}+mgh_{1}-mgh_{2}

Since h_{1}=0

K_{2}=\frac{1}{2}mv_{1}^{2}-mgh_{2}

K_{2}=\frac{1}{2}(70kg)(17m/s)^2-(70kg)(9.8m/s^2)(4.1m)=7302.4J

K_{2}=7302.4J

7 0
3 years ago
Other questions:
  • Mercury is often used as the filling liquid in liquid-in-glass thermometers because its ______ is much higher than the highest t
    5·1 answer
  • Electromagnetic waves from the sun carry ___ to earth.
    9·1 answer
  • An increase in size of one unit of magnitude translates to ___________ times the ground motion
    6·1 answer
  • What’s the definition of volume
    7·2 answers
  • Haley rubs a cotton cloth along a plastic strip. The plastic strip becomes positively charged. Why did this happen? The plastic
    12·2 answers
  • 1) How much work does it take to accelerate a 8.2 kg<br> object from rest to 19 m/s?
    15·1 answer
  • These type of winds are located between 30 and 60 degrees latitude on the globe.
    14·1 answer
  • What is the angle of incidence in air of a light ray whose angle of refraction in glass is half the angle of incidence? Show pro
    10·1 answer
  • Provide one advantage and one that is not considered an advantage of space telescopes?​
    12·1 answer
  • A hummingbird’s wings beat 100 times in 5 seconds. What is the frequency?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!