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
kolezko [41]
3 years ago
9

Suppose you want to move a big rock in your yard. It is about waist high and 4 feet long, has a volume of 1.2 m3 and a density o

f 2.5 g/cm3. How much does it weigh, in units of lbs?
Physics
1 answer:
beks73 [17]3 years ago
3 0

Answer:

6613.87 lbs

Explanation:

1.2 m³ = 1200000 cm³

Mass = Density * Volume

M = (2.5 g/cm³) * 1200000 cm³ = 3000000 g

1 lb = 453.592 g

3000000 g * (1 lbs / 453.592 g) = 6613.87 lbs

You might be interested in
What are the components of a vector with a magnitude of 4.00 and a direction of -112°?
zzz [600]

Answer: (-1.50 -3.71)

Explanation:

4 0
3 years ago
How can a liquid be drawn into a pipette safely?
Kazeer [188]
<span>A liquid be drawn into a pipette safely by squeezing a bulb attached to the wide end of the pipette. </span>
4 0
3 years ago
A rock is at the top of a 20 meter tall hill. The rock has a mass of 10 kg. How much potential energy does it have?
Ksivusya [100]

Answer:

<h2>1960 J</h2>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

PE = 10 × 9.8 × 20

We have the final answer as

<h3>1960 J</h3>

Hope this helps you

3 0
3 years ago
A crane takes 2.0 minutes to lift a load to the top of a building. The change in gravitational potential energy of the load is 3
steposvetlana [31]

Answer: 3000 W = 3.0 kW

Explanation: power P = W /t = 360 000 J / 120s

7 0
3 years ago
Read 2 more answers
When a person spins a bucket of water in a circle, the force acting on the bucket to keep the water inside is called
jarptica [38.1K]

Answer:

centripetal force

Explanation:

When a person spins a bucket of water in a circle, the force acting on the bucket to keep the water inside is called centripetal force.

The centripetal force is a constant resultant force that acts on an object in circular motion.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Two large conducting parallel plates A and B are separated by 2.4 m. A uniform field of 1500 V/m, in the positive x-direction, i
    12·1 answer
  • In science, Bob learns that the energy of a wave is directly proportional to the square of the waves amplitude. If the energy of
    10·1 answer
  • A 545-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. (a) Find the satelli
    14·1 answer
  • A 90 kg painter is standing on a horizontal wooden scaffolding of length 10 m, which is supported on each end by a rope. The pai
    10·1 answer
  • According to accepted atomic models metals are good conductors because their?
    14·1 answer
  • A potter’s wheel moves from rest to an angular speed of 0.20 rev/s in 23.8 s. Assuming constant angular acceleration, what is it
    8·1 answer
  • Why do antoms move at different speeds depending pn weather they are in liqids or solids?
    9·1 answer
  • A exercise ball is on a table 2.5 m above the ground. What is the mass
    9·1 answer
  • Which statements describe acceleration? Check all that apply. Negative acceleration occurs when an object slows down in the posi
    9·1 answer
  • What is the distance, in meters, between adjacent fringes produced by a diffraction grating having 125 lines per centimeter
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!