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
vichka [17]
3 years ago
12

A 150 kg safe on frictionless casters is being raised at 1.20m to the bed of a truck using planks 4m long. The force needed to p

ush the safe up is
Physics
1 answer:
Vesnalui [34]3 years ago
3 0
The only thing you need to know in order to solve this task is that <span>plank length (which is force x), should equal the increase in potential energy, so what we have now : (mass)* g * (height).
It has to look like that:  </span>
<span>F * 3.0 = 150 x 9.81 x 1.20 
Then solve for F, the result should be in newtones = 588N

Do hope it makes sense.</span>
You might be interested in
A bug crawls 3.0 mm east, 4.0mm north, and then 5.0 mm at 45 north of east. Draw a diagram showing its displacements and determi
KatRina [158]

Answer:

Explanation is given

Mark Me as Branliest

3 0
3 years ago
Which of the following should NOT be discussed during safety training
Juli2301 [7.4K]
Is there suppose to be an image?
7 0
3 years ago
The band gab of semi conductor?
Lerok [7]

Answer:

Properties of semiconductors are determined by the energy gap between valence and conduction bands. To understand, what is semiconductor, we have to define these terms. In solid-state physics, the energy gap or the band gap is an energy range between valence band and conduction band where electron states are forbidden.

8 0
3 years ago
Identify the areas on the image where the force of repulsion is the least.​
aalyn [17]

Answer:

The central blue square in between the lower pair of magnet has the least force of repulsion.

Explanation:

We can explain this using the dual nature of magnets.

Each magnet must have two poles namely:

-North pole

-South pole

We assume that the magnetic lines of forces enters from south pole and leaves from the north pole.

When brought together, like poles repel each other while opposite poles attract each other.

In the picture, the lower two magnets have opposite poles facing each other, hence the force of repulsion is minimum there and the force of attraction is maximum.

4 0
3 years ago
Read 2 more answers
Is this statement true or false?
RSB [31]

Answer:

Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. A coastal climate is usually mild. ... Farther inland, the climate is influenced by cold or hot air from the land.

Explanation:

Hopefully its correct!

8 0
3 years ago
Read 2 more answers
Other questions:
  • A rocket rises vertically, from rest, with an acceleration of 3.2 m/s2 until it runs out of fuel at an altitude of 1300 m. After
    8·1 answer
  • At constant pressure, the volume of a fixed mass of gas and its kelvin temperature are said to be
    6·2 answers
  • Over time, all the negative charges in an object,
    8·1 answer
  • A tall flagpole is a harmonic oscillator, flexing back and forth with a steady period. The pole rises from a base that is fixed
    12·1 answer
  • A porsche 911 ca go from 0 mph to 60 mph in 3.4secs whats ur acceleration
    13·1 answer
  • b. Comparing and Contrasting Compare the change in atmospheric pressure with elevation to the change in water pressure with dept
    5·1 answer
  • The half-life of the radioactive element beryllium-13 is 5 × 10-10 seconds, and half-life of the radioactive element beryllium-1
    5·1 answer
  • Does a ball rolling on an inclined plane have the same acceleration on the way up as it does on the way down?
    11·1 answer
  • Describe the role of plate tectonics for volcanic eruptions, continent formation, seafloor spreading, and mountain formation.
    10·1 answer
  • OF BRICK<br> (a)<br> The pushing force does not make the brick move. Explain why.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!