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
asambeis [7]
3 years ago
11

(I) A novice skier, starting from rest, slides down an icy frictionless 8.0° incline whose vertical height is 105 m. How fast is

she going when she reaches the bottom?
Physics
1 answer:
Vlad1618 [11]3 years ago
3 0

Answer:

v = 45.37 m/s

Explanation:

Given,

angle of inclination = 8.0°

Vertical height, H  = 105 m

Initial K.E. = 0 J

Initial P.E. = m g H

Final PE = 0 J

Final KE = \dfrac{1}{2}mv^2

Using Conservation of energy

KE_i + PE_i + KE_f + PE_f

0 + m g H = \dfrac{1}{2}mv^2 + 0

v = \sqrt{2gH}

v = \sqrt{2\times 9.8 \times 105}

v = 45.37 m/s

Hence, speed of the skier at the bottom is equal to v = 45.37 m/s

You might be interested in
How do the chemical properties of the halogens compare to those of the noble gases?
serg [7]
Halogens<span> are extremely reactive elements because they need one more electron to gain a full octet of valence electrons, whereas the </span>noble gases<span>are extremely unstable because they already have their full octet.</span>
8 0
3 years ago
What does friction mean?
WARRIOR [948]
Rubbing on something
5 0
3 years ago
A boat is heading due north on a river that’s flowing directly east. What is the general direction of travel for this boat with
Anna [14]

North east...............


7 0
3 years ago
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus. They have
vovangra [49]
I'm not so sure if it is 5 clicks or 0 clicks
6 0
3 years ago
Read 2 more answers
A sample of a diatomic ideal gas has pressure P and volume V. When the gas is warmed, its pressure triples and its volume double
Andreyy89

Answer:

Amount of  Energy transferred =8.5PV

Explanation:

Given:

Initial volume=V

Initial pressure=P

Final volume=2V

Final pressure=3P

Now w know that the Energy transferred in constant pressure pressure is given by

E_1=nc_pdT\\\\E_1=n\times\dfrac{7R}{2}dT\\E_1=3.5(nRdT)\\E_1=3.5(V(2P-P))\\E_1=3.5PV

Now the Energy transferred in constant volume process is given by

E_2=nc_vdT\\\\E_2=n\times\dfrac{5R}{2}dT\\E_1=2.5(nRdT)\\E_1=2.5(V(3V-V))\\E_1=5PV

The total Energy transferred is given by

E_{total}=E_1+E_2\\E{total}=3.5PV+5PV\\=8.5PV

3 0
3 years ago
Read 2 more answers
Other questions:
  • The four diagrams above show two magnets, X and Z. They are different distances apart in each diagram. In which diagram will mag
    9·2 answers
  • The most serious effect of radiation on humans is
    15·1 answer
  • As a runner crosses the finish line of a race, she starts decelerating from a velocity of 9 m/s at a rate of 2 m/s^2. Take the r
    6·1 answer
  • what are geology,astronomy,and physics is the answer hypothesis,scientific inquiries,scientific discplines,or protocols?
    15·1 answer
  • What’s the resistance of the circuit
    9·1 answer
  • Which statement is true for objects in dynamic equilibrium?
    14·2 answers
  • A ball is kicked at 10.4 m/s at an angle of 32 degrees to the horizontal
    14·1 answer
  • A tourist stands at the top of the Grand Canyon, holding a rock, overlooking the valley
    14·1 answer
  • What is the definition of power ? what are the units of power?​
    15·1 answer
  • A 1000 N crate is lifted to a height of 3.0 m. How much work is done to lift the crate?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!