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
Anton [14]
3 years ago
15

Directions: For each situation, you need to determine if the object has KE or GPE or both. Then find their values. Be sure to in

clude the correct units.
A 2-kg bowling ball sits on top of a building that is 40 meters tall.



Circle one: KE / GPE / both



Show your work for finding the values of each type of energy the object has:









A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall.



Circle one: KE / GPE / both



Show your work for finding the values of each type of energy the object has:







A 2-kg bowling ball rolls at a speed of 10 m/s on the ground.



Circle one: KE / GPE / both



Show your work for finding the values of each type of energy the object has:







A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground




traveling 5 m/s.



Circle one: KE / GPE / both



Show your work for finding the values of each type of energy the object has:



























Part 2: Finding Speed and Height Using Energy



Directions: Use the KE and GPE equations to solve for speed or height depending on the situation.



A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?





A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?





A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. What is its speed? What is its height?
Physics
2 answers:
FromTheMoon [43]3 years ago
5 0


 A 2-kg bowling ball sits on top of a building that is 40 meters tall.

GPE

A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall

its moving n its on top of a bldg. so ans is both KE n GPE

A 2-kg bowling ball rolls at a speed of 10 m/s on the ground.

KE

A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5 m/s.

moving n in the air. ans is both KE n GPE


eqn:  KE= 1/2mv^2, GPE=hmg

A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?

50000=1/2*1000^v^2

v=10m/s


 A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?

39200=200*9.8*h

h=20m


A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. What is its speed? What is its height?

12.5=1/2*1*v^2

v=5m/s

98=1*9.8*h

h=10m


Liula [17]3 years ago
5 0
Part 1

First  GPE
Second  both KE n GPE
Third  KE
Fourth  both KE n GPE


A 1,000-kg car has 50,000 joules of kinetic energy.

1/2*1000^speed^2=50000
speed=10m/s

 A 200-kg boulder has 39,200 joules of gravitational potential energy.
200*9.8*height=39200
height=20m

A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy.

1/2*1*speed^2=12.5
speed=5m/s
1*9.8*height=98
height=10m
You might be interested in
Zinc can not be changed into a simpler substance by a chemical or physical process. Therefore, zinc is classified as:
bonufazy [111]
The correct answer I think is a compound
7 0
3 years ago
Playing tetherball, a boy hits the 0.45 kg ball, moving toward him initially at 4.6 m/s, in the opposite direction at 2.5 m/s. H
saul85 [17]

Answer:

HI

Explanation:

8 0
3 years ago
John doe gets on the highway in his 1967 Shelby 427 Cobra starting from the dead stop at the bottom of the on ramp of it can be
masha68 [24]

Answer:

It will take john 4.477 seconds

7 0
3 years ago
A scientist is studying a sample of matter the matter has no definite shape or volume and it can conduct an electric current. Th
Anna35 [415]
D. plasma ..................
4 0
3 years ago
Read 2 more answers
Is Global warming changing earth temperature ️​
Yakvenalex [24]

Explanation:

<h2>Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.</h2>
7 0
3 years ago
Other questions:
  • Identify the false statement: Select one:
    12·2 answers
  • What effect does dropping the sandbag out of the cart at the equilibrium position have on the amplitude of your oscillation? Vie
    9·2 answers
  • !!!!HURRY 30 POINTS!!!!
    15·1 answer
  • If the electric potential at a point in space is zero, then the electric field at that point is:
    15·1 answer
  • Convert 3 hours 21 minutes to decimal hours.
    9·1 answer
  • A bus accelerates to 60 m/s to the east in 10 s. What is the buses acceleration? 2. A car traveling at 10.0 m/s to the west acce
    12·1 answer
  • The mass of a certain neutron star is 2.5x10^30kg and the radius 7000m. what is the force of gravity on a 1kg object of the surf
    10·1 answer
  • What is the difference between magnitude and intensity
    9·1 answer
  • What measurement do geologists use to find absolute age
    9·2 answers
  • How do icebergs form
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!