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
Andrei [34K]
3 years ago
10

There are two equations from which a change in the gravitational potential energy u of the system of a mass m and the earth can

be calculated. one is
Physics
1 answer:
Colt1911 [192]3 years ago
5 0
The change in the gravitational potential energy is represented by the equation
u = ΔPE = Δmgh
since the mass of the system will remain constant and the acceleration due to gravity will also remain constant, the equation will become
u = mg Δh
You might be interested in
Round 61.062 to one decimal place.​
RoseWind [281]

Answer: 61.1 is the answer I wish this answer help you.

3 0
4 years ago
A force that varies with time is applied to an object. The force increases linearly from zero to twenty-four newtons during the
harkovskaia [24]

Answer:

144Ns

Explanation:

Impulse is the product of force and change in time or a measure of the change in momentum. Mathematically, Impulse is given as

J = FΔt

Where

J = Impulse,

F = Force,

Δt = change in time.

Due to the varying force, we know that the impulse varies at different points in the motion. Hence, the Net Impulse will be the addition of the individual impulses, i.e.

J = ΣJᵢ

J = J₁ + J₂ + J₃

J = F₁Δt₁ + F₂Δt₂ + F₃Δt₃

=> J = (24*2) + (24*4) + (0*2)

J = 48 + 96 + 0

J = 144 Ns

4 0
3 years ago
In the qualifying round of the 50-yd freestyle in the sectional swimming championship, Dugan got an early lead by finishing the
Nata [24]

Answer:

v = 0

Explanation:

Given that,

Total distance is 50 yards

Dugan got an early lead by finishing the first 25.00 yd in 10.01 seconds

Dugan finished the return leg (25.00 yd distance) in 10.22 seconds.

We need to find Dugan's average velocity for the entire race. As he returns at the initial position. As a result, the net displacement is equal to 0. So,

Average velocity = net displacement/time

v = 0

Hence, his average velocity for the entire race is 0.

6 0
4 years ago
A ball is projected at an immovable wall with a speed vi and bounces back the wall in such a manner that it only has 1/3 of its
sergey [27]

The fraction of the kinetic energy of the ball lost during the collision is \frac{1}{3}.

The given parameters;

  • <em>initial speed of the ball, = vi</em>
  • <em>final momentum of the ball, Pf = ¹/₃Pi</em>

The initial and final momentum of the ball is calculated as;

P_i = m_ivi

P_f = m_fv_f = \frac{1}{3} m_iv_i

The initial and final kinetic energy of the ball is calculated as;

K.E_i = \frac{1}{2} m_iv_i^2 = \frac{1}{2} P_iv_i\\\\K.E_f = \frac{1}{2} m_fv_f^2= \frac{1}{2} (\frac{1}{3} P_iv_i)= \frac{1}{6} P_iv_i

The change in the kinetic energy is calculated as;

\Delta K.E = K.E_f - K.E_i \\\\\Delta K.E = \frac{1}{6} P_iv_i - \frac{1}{2} P_iv_i = \frac{1}{3} P_iv_i

Thus, the fraction of the kinetic energy of the ball lost during the collision is \frac{1}{3}.

Learn more here:brainly.com/question/18566218

5 0
3 years ago
Help me ........... science <br><br><br><br><br> Note l want answer true.......please;)
Irina-Kira [14]
Hey there!

The answer is C

Hope this helps you!

Always remember, you are A Work Of Art!
- Nicole <3 :)
5 0
4 years ago
Other questions:
  • What is the frequency of a pressure wave of wavelength 2.5 m that is traveling at 1400 m/s?
    5·1 answer
  • find the resultant in the x-direction , Rx and y-direction , Ry for F1 = 2.5n in the positive x-direction f2 = 1n in the negativ
    15·1 answer
  • Which of the following is a terrestrial planet on which one would observe the Sun rising in the west and setting in the east?
    15·1 answer
  • A football is thrown horizontally with an initial velocity of(16.6 {\rm m/s} ){\hat x}. Ignoring air resistance, the average acc
    14·1 answer
  • Based on the law of conservation of energy, which statement is false?
    14·1 answer
  • Please help me with this 29 points
    12·1 answer
  • HELP!! will sulfur and oxygen atoms most likely form an ionic bond or covalent bond?
    14·2 answers
  • Now assume that Alice and Bob are twins, and Alice left Earth and Bob stayed behind fixing his spaceship. If Alice spent some ti
    6·1 answer
  • Doc Brown holds on to the end of the minute hand of the clock atop city hall. The tangential velocity of the minute hand is 0.41
    11·1 answer
  • If carrots have 80j of energy how much energy will a rabbi get from eating the carrot
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!