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
sweet-ann [11.9K]
3 years ago
15

Do this for alot of points

Physics
1 answer:
EleoNora [17]3 years ago
3 0

1. A complete fitness and exercise program should incorporate three basic components: Endurance (Aerobic), Flexibility, and Strength. Each of these components has specific guidelines, which govern their effectiveness

You might be interested in
Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
VashaNatasha [74]
The answer to the question is A
6 0
3 years ago
Read 2 more answers
A power lifter performs a dead lift, raising a barbell with a mass of 305 kg to a height of 0.42 m above the ground, giving the
Ann [662]

Answer:

Explanation:

Before it hits the ground:

The initial potential energy = the final potential energy + the kinetic energy

mgH = mgh + 1/2 mv²

gH = gh + 1/2 v²

v = √(2g (H - h))

v = √(2 * 9.81 m/s² * (0.42 m - 0.21 m))

v ≈ 2.0 m/s

When it hits the ground:

Initial potential energy = final kinetic energy

mgH = 1/2 mv²

v = √(2gH)

v = √(2 * 9.81 m/s² * 0.42 m)

v ≈ 2.9 m/s

Using a kinematic equation to check our answer:

v² = v₀² + 2a(x - x₀)

v² = (0 m/s)² + 2(9.8 m/s²)(0.42 m)

v ≈ 2.9 m/s

3 0
3 years ago
Limestone cave can develop when Limestone rock is weathered. The weathering of the rock leaves an empty space that forms the cav
Ymorist [56]

Answer:

Wind blowing across the surface eroded the limestone.

Explanation:

4 0
3 years ago
Read 2 more answers
Proposed Kinematic Exercise I
valentinak56 [21]

Answer:

(a) 20 m

(b) 6 m/s²

(c) Between t=0 and t=2, the body moves to the left.

Between t=2 and t=4, the body moves to the right.

Explanation:

v = 3t² − 6t

x(0) = 4

(a) Position is the integral of velocity.

x = ∫ v dt

x = ∫ (3t² − 6t) dt

x = t³ − 3t² + C

Use initial condition to find value of C.

4 = 0³ − 3(0)² + C

4 = C

x = t³ − 3t² + 4

Find position at t = 4.

x = 4³ − 3(4)² + 4

x = 20

(b) Acceleration is the derivative of velocity.

a = dv/dt

a = 6t − 6

Find acceleration at t = 2.

a = 6(2) − 6

a = 6

(c) v = 3t² − 6t

v = 3t (t − 2)

The velocity is 0 at t = 0 and t = 2.  Evaluate the intervals.

When 0 < t < 2, v < 0.

When t > 2, v > 0.

3 0
4 years ago
How many electrons are available for bonding in oxygen
klasskru [66]
8 electron are needed for bonding
3 0
4 years ago
Other questions:
  • Trade winds are found ________.
    15·1 answer
  • an axe used to split wood is driven into a piece of wood a distance of 3.0 cm. If mechanical advantage of the axe is 0.85. how f
    5·1 answer
  • What is the appropriate age of the earth based on current scientific theory
    10·2 answers
  • What is the first stage of a thunderstorm?
    10·2 answers
  • If the work function of a material is such that red light of wavelength 700 nm just barely initiates the photoelectric effect, w
    5·1 answer
  • When two atoms approach each other the electron of each are attracted to the protons of the other. This is known as
    7·1 answer
  • 5. Emanuel Zacchini, the famous human cannonball of the Ringling Bros. and Barnum and Bailey Circus,
    8·1 answer
  • 1. Ano-ano ang mga mabubuti at masasamang makataong kilos na nabanggit<br>sa sitwasyon?​
    10·1 answer
  • Are stairs a type of inclined plane?
    11·2 answers
  • A charged comb contains 1000 electrons. Calculate the charge on the comb.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!