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
jeka57 [31]
3 years ago
15

A block of mass m begins at rest at the top of a ramp at elevation h with whatever pe is associated with that height.

Physics
2 answers:
natka813 [3]3 years ago
8 0
 <span>PE = mass * height * g = 87.60 J 

Frictional force = m * g * sin theta * uk = 4.7 kg * 9.81 m/sec^2 * sin 36.87 * 0.3 = 8.299 N 

Work done by friction = force * distance = 41.50 J 

Remaining energy to be converted to KE = 87.60 J - 41.50 J = 41.10 J</span>hope it helps
Darina [25.2K]3 years ago
8 0

Answer:

The PE associated with that height is given as, m×g×h

Explanation:

Potential energy (PE) is the energy possessed by an object when at rest. Its opposite is the kinetic energy (KE). When an object is at a certain height, it would possess potential energy because initially it is at rest. Also the value of the energy is determined by its mass, height and the force of gravity acting on it at that height.

So, the potential energy (PE) = mass× height× value of the gravitational force

                                                = m× g× h

Its unit is Joules. The potential energy of the mass would be converted to kinetic energy when it is in motion.

You might be interested in
Explain how buoyancy can defeat the force of gravity​
Olenka [21]

Answer:

Buoyancy causes things to float in water or liquid which appears to defeat the force of gravity. Hope this helps.

7 0
3 years ago
A technician wishes to determine the wavelength of the light in a laser beam. To do so, she directs the beam toward a partition
Nana76 [90]

Answer:

λ = 5.656 x 10⁻⁷ m = 565.6 nm

Explanation:

Using the formula of fringe spacing from the Young's Double Slit experiment, which is given as follows:

\Delta x = \frac{\lambda L}{d}\\\\\lambda = \frac{\Delta x\ d}{L}

where,

λ = wavelength = ?

Δx = fringe spacing = 1.6 cm = 0.016 m

L = Distance between slits and screen = 4.95 m

d = slit separation = 0.175 mm = 0.000175 m

Therefore,

\lambda = \frac{(0.016\ m)(0.000175\ m)}{4.95\ m}\\\\

<u>λ = 5.656 x 10⁻⁷ m = 565.6 nm</u>

6 0
3 years ago
4. Interference is an example of which aspect of electromagnetic radiation?
Lisa [10]

Answer:

D is the answer wave behavior

6 0
3 years ago
Read 2 more answers
Alex want to test factors that affect the reaction rate of sugar in water
miv72 [106K]
This aint even a question

7 0
3 years ago
Pick the correct answer
Marat540 [252]

The answer is A. Photosynthesis is caused when plants trap light energy in their leaves and use that energy to change water and carbon dioxide into glucose. Hope this helps :)

3 0
2 years ago
Other questions:
  • An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid C and 581 km from the center of asteroid
    5·1 answer
  • The shape of a sign gives you a clue about the information contained on the sign.
    13·1 answer
  • A mass suspended on a spring will exhibit sinusoidal motion when it moves. If the mass on a spring is 85 cm off the ground at it
    12·2 answers
  • Alisha uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up even though the switch is in th
    15·1 answer
  • When you mve into new jeey from another state you must have your vehicle inspected within ___.
    9·1 answer
  • A constant force of 120 N pushes a 55 kg wagon across an 8 m level surface. If the wagon was initially at rest, what is the fina
    14·1 answer
  • One speaker generates sound waves with amplitude A.
    10·1 answer
  • Which sentence provides evidence that heat travels from Earth’s mantle up to its crust?
    15·1 answer
  • A 20.0-kg mass is traveling to the right with a speed of 3.00 m/s on a smooth horizontal surface when it collides with and stick
    6·1 answer
  • The speed that a tsunami can travel is modeled by the equation , where s is the speed in kilometers per hour and d is the averag
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!