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
Nadusha1986 [10]
3 years ago
11

Physic help????????????????

Physics
2 answers:
arlik [135]3 years ago
6 0
Lets roll with B because heart conditions are critical for cardio.
maxonik [38]3 years ago
4 0

My personal understanding and opinion is that ALL of those questions
should be part of an assessment of Physical Activity Readiness.


You might be interested in
A 40kg kid riding their bike down the street at 5m/s reaches the edge of a hill and coast down to the bottom. If the hill was 10
Romashka [77]

Answer

vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

Explanation:v

6 0
3 years ago
A 2.5 kg tribble is placed in a bucket and whirled in a 1.4 m radius vertical circle at a constant tangential speed. If the forc
Over [174]

Given that,

Mass of a tribble, m = 2.5 kg

Radius, r = 1.4 m

The force on the tribble from the bucket does not exceed 10 times its weight.

To find,

The maximum tangential speed.

Solution,

The force acting on the tribble is equal to the centripetal force.

F = 10mg

The formula for the centripetal force is given by :

F=\dfrac{mv^2}{r}

v is maximum tangential speed

v=\sqrt{\dfrac{Fr}{m}} \\\\v=\sqrt{\dfrac{mgr}{m}} \\\\v=\sqrt{{10gr}} \\\\v=\sqrt{10\times 9.8\times 1.4} \\\\v=11.7\ m/s

So, the maximum tangential speed is 11.7 m/s.

8 0
3 years ago
A comet is in an elliptical orbit around the sun. its closest approach to the sun is a distance of 4.5 1010 m (inside the orbit
barxatty [35]

r1 = 5*10^10 m , r2 = 6*10^12 m

v1 = 9*10^4 m/s

From conservation of energy

K1 +U1 = K2 +U2

0.5mv1^2 - GMm/r1 = 0.5mv2^2 - GMm/r2

0.5v1^2 - GM/r1 = 0.5v2^2 - GM/r2

M is mass of sun = 1.98*10^30 kg

G = 6.67*10^-11 N.m^2/kg^2

0.5*(9*10^4)^2 - (6.67*10^-11*1.98*10^30/(5*10^10)) = 0.5v2^2 - (6.67*10^-11*1.98*10^30/(6*10^12))

v2 = 5.35*10^4 m/s

4 0
3 years ago
Why water in earthern pot remain cool in summer
hjlf

Answer:

Since in summer, the eastern side do not face the sunlight and hence the water in eastern pot remain cool in summer.

8 0
3 years ago
Read 2 more answers
What is capital of Thaivan?
lisabon 2012 [21]

are you sure it's Thaivan or Taiwan. If it's Taiwan than it's Taipei.

    Hope this help :))

4 0
3 years ago
Other questions:
  • What is the mirror formula for curved mirrors
    14·2 answers
  • What effect does temperature have on the composition of ocean water?
    9·2 answers
  • Will give brainliest! how does an engineer use physical science?
    10·1 answer
  • A rock is thrown downward from an unknown height above the ground with an initial speed of 10m/s. It strikes the ground 3s later
    12·1 answer
  • Calculate pressure when f=50N and a=100m^2​
    11·1 answer
  • Helppppppppppopppppppp​
    8·2 answers
  • Who ever answers all these questions they"ll get brain list How exactly did life begin? ... Why do we dream? ... Is there a patt
    11·1 answer
  • Calculate the electrostatic force between two protons separated by a distance of 0.90 m
    15·1 answer
  • How could nanotechnology best be used to improve the treatment of cancer with chemotherapy?
    13·1 answer
  • In a vacuum all electromagnetic waves have the same?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!