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
MAXImum [283]
3 years ago
8

Your backpack has a mass of 8 kg. You lift it from the ground to a height of

Physics
1 answer:
motikmotik3 years ago
3 0

Answer:

the answer will be 5.6 j..

hope you like the answer.....

You might be interested in
An egg falls out of a nest of a tree. It freefalls for 1.5 seconds, and then hits the ground. From how high up did the egg fall?
Alika [10]

Answer:

11.025m

Explanation:

Using kinematics,

u = Initial velocity = 0.

t = Time taken = 1.5sec.

a = Acceleration from gravity = 9.8m/s^2

Distance = s

= ut + 1/2 * a * t^2

= 0 + 1/2 * 9.8 * (1.5)^2

= 11.025m

3 0
3 years ago
Read 2 more answers
A plane is flying horizontally with speed 237 m/s at a height 1620m above the ground when a package is dropped for the plane. Th
Thepotemich [5.8K]

1. 0.5g*t^2 = 2010 m.

4.9t^2 = 2010.

t = 20.3 s. = Fall time.

D = Xo*t. = 193m/s * 20.3s = 3909 m.

2. V=sqrt(Xo^2+Yo^2)=sqrt(193^2+58^2) = 202 m/s.

3. Vo*t + 0.5g*t^2 = 2010 m.

58*t + 4.9*t^2 = 2010.

4.9t^2 + 58t - 2010 = 0.

Use Quadratic Formula.

t = 15.2 s. = Fall time.

D = 193m/s * 15.2s = 2934 m.

4 0
3 years ago
How many times more intense is the full 10 person choir than the soloist alone?
marshall27 [118]
Isn't it 10 times more intense?
5 0
4 years ago
Read 2 more answers
The escape velocity at the surface of Earth is approximately 11 km/s. What is the mass, in units of ME (the mass of the Earth),
SVETLANKA909090 [29]

Answer:11 km/s

Explanation:

Given

Escape velocity at the surface of earth is 11 km/s

Escape velocity is given by

V_e=\sqrt{\frac{2GM}{R}}

Escape velocity at the surface of earth

11=\sqrt{\frac{2GM}{R}}--------------------1

If Escape velocity is three times and the radius is also the three times

V_e_2=\sqrt{\frac{2G(3M)}{3R}}

V_e_2=\sqrt{\frac{2GM}{R}}=V_e

i.e. V_e_2=11 km/s

5 0
3 years ago
Candace is curious about which brand of spot remover will best remove ketchup stains from her carpet. What is the dependent vari
Artemon [7]
A dependent variable could be oxi clean because it needs water to work.
4 0
3 years ago
Other questions:
  • What makes the geocentric model impossible ?
    12·1 answer
  • The stratospheric chemical that prevents much of the solar ultraviolet radiation from penetrating to earth's surface is:
    11·1 answer
  • Assuming a vertical trajectory with no drag, derive the applicable form of the rocket equation for this application
    11·1 answer
  • Air is forced through the water to remove gases is called?
    15·2 answers
  • Two long straight wires are separated by a distance of d = 0.40 m. The currents are I1 = 1.0 A to the right in the upper wire an
    5·2 answers
  • How do the magnetic and electrical components of electromagnetic waves travel in relation to each other? at right angles toward
    5·1 answer
  • A house that was heated by electric resistance heaters consumed 1200 kWh of electric energy in a winter month. If this house wer
    12·1 answer
  • What is Absolute Zero on all 3 temperature scales? <br>F=<br>C= <br>K=​
    9·1 answer
  • The tachometer in the author's car has a maximum reading of 16,000 rpm. (A tachometer is a gauge that shows the angular speed of
    13·1 answer
  • Which is the correct scientific notation of the number 0.0006817
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!