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
enyata [817]
3 years ago
5

What is the potential energy of a 45 kg object resting on the ground?

Physics
1 answer:
yKpoI14uk [10]3 years ago
3 0

Answer:The potential energy is zero

Explanation:

You might be interested in
How can you inhabit saturn
vaieri [72.5K]
I know
the answer do you want me to help you?
8 0
3 years ago
What is the difference between light energy and heat energy​
MrRissso [65]

ANSWER:

What is the difference between heat and light? - Physics Stack ... Heat and light are different but they are both forms of energy. Heat is a form of kinetic energy contained in the random motion of the particles of a material. Light is a form of electromagnetic energy. As with other forms of energy, heat energy can be transformed into light energy and vice versa.

4 0
3 years ago
Your friend turns the volume up on their speaker system, so that the sound intensity is 4 times greater than it was beforehand.
erica [24]

Answer:

4

Explanation:

We know that intensity I = P/A where P = power and A = area through which the power passes through.

Now, let the initial intensity of the speaker be I₀ and its initial power be P₀. Since the intensity is increased by a factor of 4, the new intensity be I and new power be P.

So, I = P/A and I₀ = P₀/A

Now, if I = 4I₀,

P/A = 4P₀/A

P = 4P₀

Now, energy E = Pt, where t = time. So, P = E/t and P₀ = E₀/t

Substituting P and P₀ into the equation, we have

P = 4P₀

E/t = 4E₀/t

E = 4E₀

Since the energy is four times the initial energy, the energy output increases by a factor of 4.

4 0
3 years ago
A 2500 kg car traveling to the north is slowed down uniformly from an initial velocity of 20 m/s by a 5620 N braking force actin
Dennis_Churaev [7]

Answer:

the distance traveled by the car is 42.98 m.

Explanation:

Given;

mass of the car, m = 2500 kg

initial velocity of the car, u = 20 m/s

the braking force applied to the car, f = 5620 N

time of motion of the car, t = 2.5 s

The decelaration of the car is calculated as follows;

-F = ma

a = -F/m

a = -5620 / 2500

a = -2.248 m/s²

The distance traveled by the car is calculated as follows;

s = ut + ¹/₂at²

s = (20 x 2.5) + 0.5(-2.248)(2.5²)

s = 50 - 7.025

s = 42.98 m

Therefore, the distance traveled by the car is 42.98 m.

5 0
3 years ago
Light is shown through air on a diamond (n=2.42) and it partially reflects and refracts.
NikAS [45]

Answer:

Light is shown through air on a diamond n=2.42) and it partially reflects and reflects.

Based on the incident angle of 62.5 shown what is the angle of reflection of the light

question of options

21.5

6 0
3 years ago
Other questions:
  • What was the average yearly ice loss in 1980 versus 2010?
    6·2 answers
  • A 1850 kg car moves with a velocity of 3 m/s. What is its kinetic energy? Joules
    10·1 answer
  • A submarine sends a signal and receives an echo after 5 seconds. Calculate the speed of sound if distance of object from submari
    15·2 answers
  • What is the de broglie wavelength of a 149-g baseball traveling at 95.4 mph? (1 mile = 1.609 km, h = 6.63 × 10–34 j·s)?
    13·1 answer
  • Which one of the following situations is not possible?
    6·1 answer
  • What is the relationship between carbon and energy?​
    8·1 answer
  • Bromine is a liquid at room temperature. The volume of a sample of bromine is measured in a 50 beaker and a 100 ml beaker. How w
    5·1 answer
  • Calculate the speed for a car that went a distance of 125 kilometers in 2 hours​
    8·1 answer
  • Calculate the mass of a planet that exerts a 1.5 X 10 13 N force on a 5.4 x 10
    14·2 answers
  • I can fly but have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!