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
Eduardwww [97]
3 years ago
13

A 1kg skateboard sits at the top of a ramp 20 fr off the ground . How much potential energy does it have ?

Physics
1 answer:
Finger [1]3 years ago
8 0

Answer:

196J

Explanation:

Given parameters:

Mass of skateboard  = 1kg

Height off the ground  = 20m

Unknown:

Potential energy  = ?

Solution:

The potential energy is the energy due to the position of a body above the ground.

It is mathematically expressed as:

      Potential energy  = mass x acceleration due gravity x height

     Potential energy  = 1 x 9.8 x 20  = 196J

You might be interested in
Could anyone help me on the questions of the Series Circuits please!!!! (The picture is attached)
strojnjashka [21]
Series circuits - cpt connected so that the same current passes through each of them. 
Disconnection/break in series circuit and current doesn't flow.
Current same 
The total potential difference across all of the components. (the sum of the pds across the individual series elements).

The diagram in the enclosure seems to show resistors in parallel. Which is a bit confusing ...

6 0
3 years ago
A 10 kg rock falls 5 meters and hits the ground. Did the rock have any energy just
riadik2000 [5.3K]

Answer:

495.5 Joules

Explanation:

Given data

Mass= 10kg

Height= 5meters

g= 9.81m/s^2

Yes the rock will possess potential energy before it hits the ground

The potential energy is expressed as

PE=mgh

substitute

PE= 10*9.91*5

PE= 495.5 Joules

3 0
3 years ago
A 2000 kg truck is traveling at 25 m/s. Determine the impulse needed
Vitek1552 [10]

Answer:

A 7kg impulse

Explanation:

i think sorry if not

3 0
3 years ago
Polaczono szeregowo cewke ul=120 rezystor ur=100 i kondensator uc=50 Napiecie miezone voltomierzem nie moze byc: u>100 u<1
romanna [79]

Answer:

<u>Translated from Polish language:</u>

  • Coil connected in series ul = 120 resistor ur = 100 and capacitor uc = 50 Voltage with voltmeter must not be:
  • The voltmeter must not be connected in series rather it should be connected in parallel to the circuit to provide much effective results for analyzing the circuits potential difference.

                                                                                                                                                                                 

3 0
3 years ago
HELPPPP
telo118 [61]

Answer:

D

Explanation:

induction is the transfer of charge without contact between materials

7 0
3 years ago
Other questions:
  • Which statement accurately describes the relationship between air pressure, air density, or altitude?​
    7·2 answers
  • A ball is thrown vertically upward with a speed of 18m/sec from the edge of 85m tall building.
    6·1 answer
  • The mean diameters of Mars and Earth are 6.9 x 10^3 km and 1.3 x 10^4 km, respectively. The mass of Mars is 0.11 times Earth’s m
    6·1 answer
  • A frying pan is quickly heated on a stovetop to 200 C. It has an iron handle that is 20 cm long . Estimate how much time should
    6·1 answer
  • The Big Bang Theory is a theory about the expansion of the universe. True False
    8·1 answer
  • Energy travels from place to place in the form of a
    11·2 answers
  • What causes irregular galaxies to be irregular
    9·2 answers
  • A place where two bones come together is known as an
    5·2 answers
  • Can anybody answer this its a science question NO LINKS !!!!
    5·1 answer
  • You are feeling like spaghetti. Although normally only about 2 meters tall, you are now about 25 meters long. (How fortunate, if
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!