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
tangare [24]
3 years ago
11

An object which has a mass 70 kg is sitting on a cliff 10 m high . Calculate the objects gravitational potential energy given G=

10m/s2
Physics
2 answers:
Lina20 [59]3 years ago
6 0

In physics, potential energy is calculated as ‘mass × acceleration due to gravity × height’

So,

P.E. = 70 kg × 10 m/s² × 10 m

P.E. = 7000 Joules

inysia [295]3 years ago
4 0

Answer: 7000 joules

Explanation: The potential energy is the energy "stored" by the object.

For objects that are lifted in the y-axis, the potential energy can be calculated as:

U = g*h*m

where g is the gravity's acceleration, h is the height and m is the mass of the object.

Here, g = 10m/s^2, m=70kg and h = 10m

U = 10m/s^2*70kg*10m = 7000 (m/s)^2*kg = 7000 joules

You might be interested in
An interference pattern is produced by light with a wavelength 580 nm from a distant source incident on two identical parallel s
irakobra [83]

Answer:

Explanation:

1 )

Here

wave length used that is λ = 580 nm

=580 x 10⁻⁹

distance between slit d = .46 mm

= .46 x 10⁻³

Angular position of first order interference maxima

= λ / d radian

= 580 x 10⁻⁹ / .46 x 10⁻³

= 0.126 x 10⁻² radian

2 )

Angular position of second order interference maxima

2 x  0.126 x 10⁻² radian

= 0.252 x 10⁻² radian

3 )

For intensity distribution the formula is

I = I₀ cos²δ/2 ( δ is phase difference of two lights.

For angular position of θ1

δ = .126 x 10⁻² radian

I = I₀ cos².126x 10⁻²/2

= I₀ X .998

For angular position of θ2

I = I₀ cos².126x2x 10⁻²/2

=  I₀ cos².126x 10⁻²

8 0
3 years ago
Jalen combines two substances in science class. Once combined, only one of the two substances
dusya [7]

Answer: b. The combination is a mixture because the substances can be separated

Explanation: Based on the facts presented above, the combination of both both substances can be referred to as a mixture due to the following:

A mixture is obtained when two or more substances or materials are combined without a chemical reaction. This is observed when Jalen combined substance 1 and 2 with only one of the substances becoming visible after the combination.

The other reason is that, a mixture can be separated back into its original constituent, this is evident when the combination was filtered with only substance 2 going through the filter and substance 1 remaining in the filter

4 0
3 years ago
A solid cylindrical object has a mass of 2.0 kg, a diameter
omeli [17]

Answer:

I = 0.0025 kg.m²

Explanation:

Given that

m= 2 kg

Diameter ,d= 0.1 m

Radius ,R=\dfrac{d}{2}

R=\dfrac{0.1}{2}

R=0.05 m

The moment of inertia of the cylinder about it's axis same as the disc and it is given as

I=\dfrac{mR^2}{2}

Now by putting the all values

I=\dfrac{2\times 0.05^2}{2}

I = 0.0025 kg.m²

Therefore we can say that the moment of inertia of the cylinder will be  0.0025 kg.m².

4 0
3 years ago
What happens when two forces act in the same direction?
Vika [28.1K]
C. Their strengths are added 
3 0
3 years ago
5 x 10 to the power electron cross through the cross section of a wire per second. What is the magnitude of electric current pas
Rom4ik [11]

. She replaces a straight electrical

8 0
3 years ago
Other questions:
  • What happens when the temperature of a substance decreases significantly?
    9·2 answers
  • How many atoms are represented by one formula unit of aluminum sulfite, al2(so3)3?
    5·1 answer
  • What scientific device fascinated Newton as a Boy?
    11·1 answer
  • -In the Bohr model, as it is known today, the electron is imagined to move in a circular orbit about a stationary proton. The fo
    5·1 answer
  • Gravity is a force that helps to hold the universe together.true or false
    11·2 answers
  • Are the statements of the Flat Earth Society an example of science or pseudoscience?
    13·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    15·1 answer
  • Create an energy path in the Gizmo, starting at the Sun. For each step of the path, describe the energy conversion that takes pl
    11·1 answer
  • A tourist stands at the top of the Grand Canyon, holding a rock, overlooking the valley below. Find the final velocity, and disp
    5·2 answers
  • State the law of conversation of momentum​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!