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
masha68 [24]
2 years ago
13

A book that weighs 5 newtons is sitting on a table 1.5 meters above the floor. How much gravitational potential energy does the

book have?6.5 joules
4.5 joules
7.5 joules
3.33 joules
Physics
1 answer:
valina [46]2 years ago
5 0

Answer:7.5J

Explanation:7.5

J

Explanation:

P

E

=

m

g

h

Since

F

=

m

g

in this case

P

E

=

F

h

P

E

=

5

N

⋅

1.5

m

=

7.5

You might be interested in
A race car accelerates at a constant rate from 20 m/s to 60 m/s in a time of 2 seconds. What is the car’s acceleration?
Vlada [557]

\huge\fbox{Answer ☘}

Given ,

initial velocity , u = 20 m/s

final velocity , v = 60 m/s

time taken = 2 seconds

Now ,

\bold{acceleration =  \frac{v - u}{t} } \\ \\   =  > \bold{ \frac{60 - 20}{2} }  \\ \\  =  >  \bold{\frac{40}{2} } \\  \\ \bold{ => 20 \: ms {}^{ - 2}}

hope helpful~

5 0
1 year ago
When a machine is used to perform a task, work output is always more than work input. please select the best answer from the cho
Maurinko [17]
Properly input current above 40 voltage or 100 for example elecrical fan machine is used to perform a task, work output is always more than work
5 0
3 years ago
A kayaker moves 22 meters northward, then 18 meters southward , and finally 24 meters northward what is the distance and magnitu
Elina [12.6K]

Answer:

Distance = 64 metres

Displacement = 28 metres

Direction = northward

Explanation:

Given that a  kayaker moves 22 meters northward, then 18 meters southward , and finally 24 meters northward

Distance covered is only about the magnitude of the length covered.

Distance = 22 + 18 + 24 = 64 metres

The direction will be considered when calculating the displacement

Let northward be positive and southward be negative

Displacement = 22 - 18 + 24 = 28 metres

Since the displacement is positive, the direction of the motion is northward.

8 0
3 years ago
observe the figure given carefully volume of water in each vessel is shown arrange them in order of decreasing pressure at the b
mihalych1998 [28]

Answer:

See the explanation below

Explanation:

The pressure is defined as the product of the density of the liquid by the gravitational acceleration by the height, and can be easily calculated by means of the following equation.

 P=Ro*g*h

where:

Ro = density of the fluid [kg/m³]

g = gravity acceleration = 9.81 [m/s²]

h = elevation [m]

In this way we can understand that the greater pressure is achieved by means of the height of the liquid, that is, as long as the fluid has more height, greater pressure will be achieved at the bottom.

Therefore in order of decreasing will be  

The largest pressure with the largest height of the liquid, container B. The next is obtained with container D, the next with container A and the lowest pressure with container C.  

The pressure decreases as we go from the container B - D - A - C

5 0
3 years ago
Pls answer it ASAP I need it today
Lapatulllka [165]
Detergents are special, powerful cleansers that can break up dirt, oils, and grease in clothing or on dishes.

Cleaning solvents are used to remove oil, grease, solder flux, and other contaminants.

Acid cleaners are generally used to remove mineral deposits and are useful for descaling dishwashers or removing rust from restroom facilities.

Abrasive uses
* Buffing.
* Honing.
* Drilling.
* Grinding.
* Sanding.
* Polishing.
* Cutting.
* Sharpening.
4 0
2 years ago
Other questions:
  • A Sound wave has a frequency of 192 HZ and travels across a football field (91.4m) in 2 seconds. what is the wavelength of the s
    13·1 answer
  • A car accelerates from 30 ft/s to 90 ft/ sec in 6 seconds
    9·1 answer
  • Molecules are composed of atoms held together through
    12·2 answers
  • What is the same person's mass on mars, where the acceleration due to gravity is 3.7 m/s2?
    12·1 answer
  • Ed records the temperature of two pots of water. Pot X
    12·2 answers
  • A police car is traveling at a speed of 50 meters per second when it suddenly accelerates at a rate of 5 m/s2. How fast will the
    7·1 answer
  • A jet fighter pilot wishes to accelerate from rest at 5 ggg to reach Mach-3 (three times the speed of sound) as quickly as possi
    9·1 answer
  • Question 25
    13·1 answer
  • A 2300-kg car slows down at a rate of 3.0 m/s2 when approaching a stop sign. What is the magnitude of the net force causing it t
    7·1 answer
  • Habiba and selehadin have measured the voltage across a resistor to be 5.26V and the current flowing through in to be 0.41A they
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!