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
Kitty [74]
3 years ago
15

Plss help

Physics
1 answer:
Genrish500 [490]3 years ago
3 0

Answer:

b

Explanation:

imagine urself on an elevator dont you feel lighter

You might be interested in
What can be absorbed or released as the result of a chemical reaction?
Lera25 [3.4K]
Energy is released or absorbed ,but no loss in total molecules,each of which consists of one atom of oxygen and two of hydrogen,are broken down.!
3 0
3 years ago
Read 2 more answers
un futbolista patea una pelota que se encuentra en el pasto con un angulo de 30° (medido desde la horizontal) con la intención d
Rus_ich [418]

Answer:

i dont really know what it is

8 0
3 years ago
if a star 100 light years from earth is beginning to expand into a giant star how long will it take for astronomers to observe t
VikaD [51]

Answer:

100years later

Explanation:

Because the lights will arrive at world after 100 years later.

7 0
3 years ago
Which is an SI base unit that makes up part of the unit of force?
Snezhnost [94]

Answer:

Which is an SI base unit that makes up part of the unit of force?

1.candela

5 0
2 years ago
As the pendulum swings through the origin, it has a speed of v0 = 1.1 m/s. If the mass on the end of the pendulum is 15 g, and t
serg [7]

Answer:

1: 6.18 cm

2: 52.5609 degrees

Explanation:

We have the pendulum speed at the origin, and in that moment, all energy is kinetic, so we can calculate the pendulum energy by:

Ec = 0.5*m*v^2 = 0.5*0.015*1.1^2 = 0.0091 J

Now with that energy, we can calculate the height the pendulum will reach, as in that moment, the kinetic energy is totally converted to gravitational potencial energy:

Eg = m*g*h = 0.0091

0.015 * 9.81 * h = 0.0091

h = 0.0091 / (0.015 * 9.81 ) = 0.0618 m = 6.18 cm

Looking at the image attached, we can see that the pendulum will form a triangle, and one of the cathetus will be the length of the pendulum minus the height it went up, and the hypotenusa will be the pendulum length.

So, we know that the sine of the angle will be the division between the opposite cathetus and the hypotenusa:

sin(angle) = (30-6.18)/30 = 23.82/30 = 0.794 -> angle = 52.5609 degrees

4 0
3 years ago
Other questions:
  • Cranium and facial bones compose the
    13·1 answer
  • How can human health be affected by changes in air quality?
    12·1 answer
  • A starlike object seen on deep sky photographs coincides with an intense radio source and has a spectrum in which the characteri
    6·1 answer
  • Which product of alcoholic fermentation causes dough to rise and creates the little holes in bread? A. water B. oxygen C. glucos
    15·1 answer
  • A brick is dropped with zero initial speed from the roof of a building and strikes the ground in 1.90 s. How tall is the buildin
    11·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    11·1 answer
  • Explain briefly work energy and power
    11·1 answer
  • Which of the following is a compound?<br><br> (A) Brass<br> (B) Rust<br> (C) Iron<br> (D) Steel
    5·2 answers
  • Question 7 of 10
    10·1 answer
  • Which of the following are car safety features that rely on increasing the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!