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
nignag [31]
3 years ago
4

Trisha works for a roofing company and needs to move shingles from the ground to the roof.

Physics
2 answers:
belka [17]3 years ago
6 0

Answer:

Crane

Explanation:

Trisha works for a roofing company and needs to move shingles from the ground to the roof. She will use a crane to move the shingles. The simple machine in crane is pulley.

A pulley is a simple machine that consist of a wheel on an axle. An axle is used to provide support and to change the direction of motion.

So, she must use a crane which consists of a pulley.                  

Orlov [11]3 years ago
4 0

A pulley is used to hoist or raise objects.

Other simple machines, such as an inclined plane or lever, would be impractical

CTRL-C  CTRL-V

You might be interested in
How does the centripetal force depend on speed, radius and the revolving mass?
Mnenie [13.5K]

Answer:

Mass velocity and radius are all related to centripetal force

Explanation:

By frequency of its rotation and the radius of the circular path along which objects moves

6 0
3 years ago
Why do telescopes give modern astronomers an advantage over people in the past
pochemuha

its because it allows modern astronomers  the ability to see farther out and more accuratly

6 0
4 years ago
The temperature of water in a beaker is 45°C. What does this measurement represent?
Tasya [4]

Answer:

the average kinetic energy of water particles - C.

8 0
3 years ago
A basketball player can jump 1.6 m off the hardwood floor. With what upward velocity did he leave the floor?
irinina [24]
First do 1.6 m (how far he jumps) 9.8 m/s (what gravity is measured at) then times 2

= 31.36

Sq root = 5.6
3 0
3 years ago
Read 2 more answers
1. The volume of a given mass of gas is 20cm when its
Pavel [41]

Answer:

Explanation:

The way to show a cubed substance is either like this³ or like this x^3. The small three is found at the bottom toolbar at the bottom of the question space marked by the  Ω symbol.

100 mmHg

Givens

V1 = 20 cm^3

V2 = 80 cm^3

P1 = 400 mmHg

P2 = ?

Formula

V1 * P1 = V2 * P2

Solution

20 * 400 = 80 * P2              Divide by 80

20 * 400/80 = P2

P2 = 8000 / 80

P2 = 100 mmHg

5 0
3 years ago
Other questions:
  • You are standing 2.5 m directly in front of one of the two loudspeakers shown in the figure. they are 3.0 m apart and both are p
    10·1 answer
  • When nonmetals bond with other atoms, what usually happens?
    5·1 answer
  • a bus starts to move with the speed of 20 m/s.calculate the time taken by the bus to cover a distance of 72km​
    15·1 answer
  • If you walked 29752 meters in 2.00 hours what would your average speed be in m/s. Then, suppose you slow down to 3.00 m/s at the
    12·1 answer
  • Some simple Machines decrease mechanical advantage and are used to_______.
    11·2 answers
  • A helium-neon laser beam has a wavelength in air of 633 nm. It takes 1.38 ns for the light to travel through 32.0 cm of an unkno
    5·1 answer
  • Numerous engineering and scientific applications require finding solutions to a set of equations. Ex: 8x + 7y = 38 and 3x - 5y =
    5·2 answers
  • 11. A 2.5-kg block slides down a 25o inclined plane with a constant acceleration. The block starts from rest at the top. At the
    7·1 answer
  • A particle moving along the y-axis has the potential energy u =4y3j, where y is in m. what is the y-component of the force on th
    13·1 answer
  • Un vagón de 250 kg situado en la cima de una montaña rusa inicia su descenso por una rampa inclinado 60º sobre la horizontal. Si
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!