answer.
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
PilotLPTM [1.2K]
2 years ago
10

Complete the passage to identify potential and kinetic energy. A rock resting on the top of a hill has energy, while a rock roll

ing down a hill has energy.
Physics
2 answers:
kipiarov [429]2 years ago
8 0
A rock resting on the top of a hill has POTENTIAL energy, while a rock
rolling down a hill has KINETIC energy.
cricket20 [7]2 years ago
5 0

Explanation:

Energy of an object obtained due to its motion is known as kinetic energy whereas energy of an object obtained due to its position is known as potential energy.

Therefore, when rock is resting on top of a hill then the rock has only potential energy. On the other hand, when rock is rolling down then it has attained kinetic energy.

Thus, we can conclude that a rock resting on the top of a hill has potential energy, while a rock rolling down a hill has kinetic energy.

You might be interested in
A blue puck has a velocity of 3i –4j m/s. Its mass is 20 kg. What is its momentum?
damaskus [11]
P = m * v
v = {3i - 4j} = square root (3^2 + 4^2) = 5
P = 20 * 5
P = 100 kg m/s
6 0
2 years ago
Read 2 more answers
A flashlight beam makes an angle of 60 degrees with the surface of the water before it enters the water. in the water what angle
alexira [117]
<h3><u>Answer</u>;</h3>

= 22°

<h3><u>Explanation</u>;</h3>
  • According to Snell's law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. The constant value is called the refractive index of the second medium with respect to the first.
  • Therefore; Sin i/Sin r = η

In this case; Angle of incidence = 90° -60° =30°, angle of refraction =? and η = 1.33

Thus;

Sin 30 / Sin r = 1.33

Sin r = Sin 30°/1.33

       = 0.3759

r = Sin^-1 0.3759

   = 22.08

   <u>≈ 22°</u>

3 0
2 years ago
Plants use sunlight as energy to convert carbon dioxide and water into glucose and oxygen. Which best describes the reaction? Th
Alina [70]

Answer:

the correct statement is the first

The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products.

Explanation:

The law of conservation of energy establishes that the masses are not destroyed, they can only be transformed.

Therefore the mass of carbon in the reactants (CO2 and H2O) must be in the products (glucose and oxygen)

so the correct statement is the first

The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products.

6 0
2 years ago
Read 2 more answers
A 6.70 −μC particle moves through a region of space where an electric field of magnitude 1500 N/C points in the positive x direc
Alborosie

The given question is incomplete. The complete question is as follows.

A 6.70 −μC particle moves through a region of space where an electric field of magnitude 1500 N/C points in the positive x direction, and a magnetic field of magnitude 1.25 T points in the positive z direction.

A) If the net force acting on the particle is 6.21 \times 10^{-3} N in the positive x direction, find the components of the particle's velocity. Assume the particle's velocity is in the x-y plane.

Enter your answers numerically separated by commas.

Explanation:

The given data is as follows.

           Q = 6.50 \times 10^{-6} C

           E = 1300 N/C in the +x direction

           B = 1.02 T in the +z direction

and,    F_{net} = 6.25 \times 10^{-3} N in the +x direction

Also,       F_{net} = F_{E} - F_{b}

                         = qE - qvB

Now, we will calculate the value of v as follows.

             v = (\frac{1}{B}) \times (E - \frac{F_{net}}{q})

                 = (\frac{1}{1.02 T}) \times (1300 - \frac{6.25 \times 10^{-3}}{6.50 \times 10^{-6}})

                v = 458.507 m/s

Using the value for velocity, we need to know which direction it's going.

You know +x direction for E, +z direction for B and +x for F_{net}.

Using the right hand rule where:

your right thumb goes toward the F_{net}, then your index finger points to B (z direction) Then curl your middle, ring, and pink 90 angle. This shows where v is going which is -y direction.

Thus, we can conclude that v_{x}, v_{y}, v_{z} = 0, -(458.507), 0.

8 0
2 years ago
Starting at point 0, you travel 500 m on a straight road that slopes upward at a constant angle of 5 degrees. What is your heigh
ira [324]

Answer:

43.58 m

Explanation:

If you travel 500 m on a straight road that slopes upward at a constant angle of 5 degrees

Using trigonometry ratio

Sin 5 = opposite/hypothenus

Where the hypothenus = 500m

Opposite = height h

Sin 5 = h/500

Cross multiply

500 × sin 5 = h

h = 500 × 0.08715

h = 43.58m

Therefore, the height above the starting point is equal to 43.58m

5 0
2 years ago
Other questions:
  • Why is the transverse spatial extent of a photon proportional to its wavelength which is a longitudinal quantity?
    7·1 answer
  • what shall be the effect on the least count of spherometer if number of divisions on its circular scale be doubled?
    12·1 answer
  • a pebble is dropped down a well and hits the water 1.5 seconds later. using the equations for motion with constant acceleration,
    7·2 answers
  • Give the symbols for 4 species that are isoelectronic with the telluride ion, te2-.
    12·1 answer
  • Eratosthenes determined the circumference of Earth by conducting an experiment. Put his steps in order as they correlate to the
    9·1 answer
  • On a nice summer day,Kim takes her niece Madison for a walk in her stroller.If they start from rest and accelerate at a rate of
    14·1 answer
  • 1. A 930-kg car traveling 56 km/h comes to a complete stop in 2.0 s. What is the
    13·1 answer
  • An automobile tire is filled to a pressure of 240.0 kPa early in the morning when the temperature is 15.0C. After the car is dri
    7·1 answer
  • An ac source of period T and maximum voltage V is connected to a single unknown ideal element that is either a resistor, and ind
    6·1 answer
  • The diagram shows a heater above a thermometer. The thermometer bulb is in the position shown. Which row shows how the heat ener
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!