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
AfilCa [17]
3 years ago
15

A person kicks a rock horizontally off a cliff with a speed of 35m/s. It takes 12 seconds to hit the ground below(don’t forget y

our units). What is the height of the cliff? What is the final vertical velocity? What is the range?
Physics
1 answer:
Marta_Voda [28]3 years ago
4 0

take gravity g as 9.81

height of cliff = ut +1/2at^2 = 1/2*(9.81)*12^2 = 706.32 meters

What is the final vertical velocity

v=u+at, final velocity v = 0 + 9.81*12 = 117.72 m/s


You might be interested in
In the 2008 Olympics, Jamaican sprinter Usain Bolt shocked the world as he ran the 100-meter dash in 9.69 seconds. Determine Usa
-Dominant- [34]

Answer:

His average speed was 10.3199 m/s.

Explanation:

4 0
3 years ago
If izzy mass is 0.3kg he applide 657.9n force what will be the accelration​
Sholpan [36]

Answer:

The acceleration of the body, a = 2193 m/s²

Explanation:

Given,

The mass of the body, m = 0.3 kg

The force acting on the body, F = 657.9 N

The force acting on an object is proportional to the product of mass and acceleration of the body.

                         F = m x a

Therefore, the acceleration of the body is

                           a = F / m

                              = 657.9 N / 0.3 kg

                              = 2193 m/s²

Hence, the acceleration of the body, a = 2193 m/s²

4 0
3 years ago
I am thinking of an unreactive nonmetal and Aisha suggested I use bromine. Is this a good choice? Explain your reasoning. If not
galina1969 [7]
G
Jslapa
Bskalapaoa
Dopa kP al
3 0
3 years ago
A bicyclist starting at rest produces a constant angular acceleration of 1.30 rad/s2 for wheels that are 35.5 cm in radius.
Debora [2.8K]

Answer:

a) 0.462 m/s^2

b) 31.5 rad/s

c) 381 rad

d) 135m

Explanation:

the linear acceleration is given by:

a=\alpha *r\\a=1.30rad/s^2*(35.5*10^{-2}m)\\a=0.462m/s^2

the angular speed is given by:

\omega=\frac{v}{r}\\\\\omega=\frac{11.2m/s}{35.5*10^{-2}m}\\\\\omega=31.5rad/s

to calculate how many radians have the wheel turned we need the apply the following formula:

\theta=\frac{1}{2}\alpha*t^2\\\\t=\frac{\omega}{\alpha}\\\\t=\frac{31.5rad/s}{1.30rad/s^2}\\\\t=24.2s\\\\\theta=\frac{1}{2}*1.30rad/s^2*(24.2s)^2\\\\\theta=381rad

the distance is given by:

d=\theta*r

d=381rad*(35.5*10^{-2}m)\\d=135m

4 0
3 years ago
What energy output objects work with the turbine?
Sonbull [250]

Answer:

Energy output from Solar panel is Electric Energy so any object which require electric energy an input will run by turbine. for example Electric Bulb,Electric Water Heaters.

hope it helps you!!

6 0
2 years ago
Other questions:
  • A train is speeding down a railroad track at the speed of 50 miles per hour. From whose reference point is the train not moving?
    15·1 answer
  • Determine if each phrase describes speed or velocity Sort each tile into the appropriate column
    8·1 answer
  • A Cephied is a star that belongs to a class of yellow supergiant pulsating stars; these stars vary periodically in brightness, a
    15·1 answer
  • if a big stone and a small stone is dropped simultaneously from the certain height. they fall together why??​
    8·2 answers
  • NEED HELP WITH THIS! ( arithmetic sequences )
    10·1 answer
  • Newton discovered that gravity affects the orbits of planets <br><br> True <br> Or<br> False
    10·2 answers
  • A helicopter lifts a 66 kg astronaut 15 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/
    7·1 answer
  • Which organism would be a top consumer in a food chain
    9·1 answer
  • 6. What are the methods to control noise pollution?​
    13·2 answers
  • What is the range of motion of the elbow if extension is 0° and flexion is 145°?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!