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## 6. A 12 kg cat is resting on a tree

**Ask: **6. A 12 kg cat is resting on a tree which is 7 m above the ground. Calculate its potential energy. 7. A girl runs up a 5 meter high flight of stairs with a mass of 20.4 kg. Calculate her potential energy. 8. A ball of mass 2 kg is kept on the hill of height 3000 m. Calculate the potential energy possessed by it? 9. A 2000 kg car is on the edge of a 100 m cliff. What potential energy does the car possess relative to the base of the cliff? 10. Suppose you drop a 0.5 kg textbook from the third floor of a building to a friend who stands on the ground. If the book is 36 m from the ground, what is its potential energy?

6. A 12 kg cat is resting on a tree which is 7 m above the ground. Calculate its potential energy.

Answer: (12kg)(9.8m/²)(7m)

### **PE =**** ****823.2J**

7. A girl runs up a 5 meter high flight of stairs with a mass of 20.4 kg. Calculate her potential energy.

Answer: (12kg)(9.8m/²)(7m)

### PE = 999.6J

8. A ball of mass 2 kg is kept on the hill of height 3000 m. Calculate the potential energy possessed by it?

Answer: (12kg)(9.8m/²)(7m)

### PE = 58,800J

9. A 2000 kg car is on the edge of a 100 m cliff. What potential energy does the car possess relative to the base of the cliff?

Answer: (12kg)(9.8m/²)(7m)

### PE = 1,960,000J

10. Suppose you drop a 0.5 kg textbook from the third floor of a building to a friend who stands on the ground. If the book is 36 m from the ground, what is its potential energy?

Answer: (12kg)(9.8m/²)(7m)

### PE = 176.4J

PS. I’m shock to see the answers since it’s a big numbers I don’t know if it’s right but I used my knowledge about Potential Energy, well I’m still new about this topic but we already discussed the formula how to get the PE, I just multiply the mgh and it’s the come out, please feel to correct me if i wasn’t right.

welcome, pa brainlest 🙂

## calculating1. Andy and Bryan each lift a 150 kg barbell

**Ask: **calculating

1. Andy and Bryan each lift a 150 kg barbell to a height of 15 m off the ground, Andy lifts his

barbell in 10 second and Bryan lifts his in 20 seconds, (a) Who does more work and (b)

who exerts more power?

**Answer:**

Bryan

**Explanation:**

Because Bryan pulls down the barbell after 20 seconds

## 4889 15m x 15m 2135 kg/m Carol has a BN

**Ask: **4889 15m x 15m 2135 kg/m Carol has a BN of 2133 She falls under the Normal Weight category Calculate the BMI for the following people: Height in m Mass in ko Height in m Person BM 169 79 THERESE 172 70 MGUEL 156 89 LUS 1.61 ANNE Based on the table above, answer the questions below. 1. How many of the people from the table are underweight? 2. How many are overweight? 3. Is there anyone who is obese?

need kona po ngayon pasagot

Answer:

height in m²

1. 27.97

2. 23.66

3. 36.57

4. 18.90

BMI

1. 27.97

2.23.66

3.36.57

4.18.90

Step-by-step explanation:

## A 12 kg cat who is resting on a tree

**Ask: **A 12 kg cat who is resting on a tree has a potential energy of 50. calculate its position (height) relative to the ground.

[tex]tt{huge{blue{Explanation:}}}[/tex]

The potential energy of an object is

[tex]boxed{PE = mgh}[/tex]

where:

PE = potential energy

m = mass

g = acceleration due to gravity = 9.8 m/s²

h = height

[tex]tt{huge{red{Solution:}}}[/tex]

### Solving for h

PE = mgh

[tex]dfrac{PE}{mg} = dfrac{mgh}{mg}[/tex]

[tex]h = dfrac{PE}{mg}[/tex]

[tex]h = dfrac{text{50 J}}{(text{12 kg})(text{9.8 m/}text{s}^{2})}[/tex]

[tex]boxed{h = text{0.425 m}}[/tex]

Therefore, the position of the cat relative to the ground is __0.425 m.__

[tex]\[/tex]

#CarryOnLearning

## A convex surveillance mirror in a convenience store has a

**Ask: **A convex surveillance mirror in a convenience store has a focal length of 0.40m. A customer, who is 170cm tall, is standing 4.5m in front of the mirror, Calculate the image distance and the image height.

**Answer:**

5maka

**Explanation:**

pa barinaliest lods

## 1. After finishing his lab report, Carlo pulls his 75-kg

**Ask: **1. After finishing his lab report, Carlo pulls his 75-kg body out of the study room chair and climbs up the 5.0-m high flight of stairs to his bedroom. How much work does he do in going to his bedroom?

2. Andy and Bryan each lift a 150-kg barbell to a height of 1.5 m off the ground. Andy lifts his barbell in 1.0 seconds and Bryan lifts in 2.0 seconds. (a) Who does more work and (b) who exerts more power?

3. Calculate the kinetic energy of a 1000-kg car traveling at 60 km/h.

4. How much is the PE of 10,000 kg water stored 12 m above the ground?

**Answer:**

Sorry i need a Points

**Explanation:**

#Sorry pooo I’m

marga oh well you are

**Answer:**

hindi pa po ako matalino masayado eh

## 5. A 12 kg cat who is resting on a

**Ask: **5. A 12 kg cat who is resting on a tree has a potential energy of 50 Calculate its position (height)

relative to the ground.

A. The cat is located 0.43 m above the ground

B. The cat is located 0.43 m above the ground.

C. The cat is located 0.43 m above the ground

D. The cat is located 0.43 m above the ground.

**Answer:**

a b c d

**Explanation:**

pare pareho lang naman ang sagot

## 1. Find the power of the man who pushe2. At

**Ask: **1. Find the power of the man who pushe

2. At what rate is work done if the 250N object is lifted to a height 4m in 4s?

ntial Energy

1. What is the gravitational potential energy of a 0.2 kg ball lifted to a height of 5.0 m above the

ground?

2. A 1.5 kg book on top of a shelf has a height of 7 m. What is the gravitational potential energy

if the gravity of the book from the floor is 4.9 m/s??

tic Energy

1. If a 0 2 kg ball is thrown with a velocity of 6 m/s, what is its KE?

2. Calculate the kinetic energy of 1000 kg truck traveling at 600m/s?

2. To solve this, we use the Work formula which is W = Fd

W = (250)(4)

The work done is 1000, or 1000 Joules, Joules is the unit for Work

1. By the PE Formula, we can solve for the gravitational potential energy with the foruma PE = mgh

Mass = 0.2kg

G = 9.8m/s^2

H = 5m

The Potential Energy is 9.8 Joules

2. PE = mgh

Mass = 1.5kg

G = 9.8m/s^2

H = 7m

The potential energy is 102.9 Joules

3. For Kinetic Energy, we can use the formula KE = 1/2(mv^2)

Mass = 0.2kg

Velocty = 6

1/2((0.2)(6)^2)

1/2(0.2(36))

1/2(7.2)

The Kinetic Energy is 3.6 Joules

4. Kinetic Energy formula = 1/2(mv^2)

M = 1000kg

V = 600m/s

1/2(1000(3600))

1/2 (3600000)

KE = 18,000 Joules

## Directions: Identify if the given situation/problem can solved using statistics,then

**Ask: **Directions: Identify if the given situation/problem can solved using statistics,then put a mark ☑️. If not put mark ❎

1. Estimate the number of people who will be making deposits.

2. Finding the average income of the residence of barangay Nena.

3. Identifying the common income of the families.

4. Checking the quality of the red rice inside the sack.

5. Average temperature of San Julian from March 1 to April 1.

6. Computing the average height of cassava.

7. Identifying the middle age of the students in grade 7.

8. The most frequently weight of the students in section Narra.

9. Calculating the average income of ten families.

10. Classifying the fruits inside the baskets.

**Answer****:**

**✔****✔****✔****✖****✔****✔****✔****✔****✔****✔**

**Explination****:**

**sana****makatulog****done****na****po****wellcome****po****sa****iyo**

## Problem Solving: Analyze and solve the given problems carefully. Write

**Ask: **Problem Solving: Analyze and solve the given problems carefully. Write your answer in the space provided. Don’t forget to put the unit of your final answer and round off your answer to the nearest hundredths. Example: 245671 J 456.50 J 67878.90 J 345.40 W

NONSENSE ANSWER= REPORT

PLEASE KINDLY ANSWER IT CORRECTLY

1. Calculate the power output in watts of a 50 kg student who climbs a flight of stairs 5.7 m high in 7.3 s.

2.How much work is done if a force of 45.67 N moves an object to a distance of 9.3 m?

3.A 1320 kg car travels at 13.5 m/s. What is it kinetic energy?

4.A small electric motor is used to lift a 256 N water tank to a 5.7 m above the ground in 7.2 s. Calculate the power output of the motor.

5.A 15 kg rock rested on the top of the mountain at the height of 400.25 m. What is it potential energy?

**Answer:**

1. The power of an object doing a work W in a given

time t is given by

where:

P = power

W = work

t = time

Solving for F

F = weight = mg

F = (50 kg)(9.8 m/s²)

F = 490 N

Solving for W

W = Fd

W = (490 N)(5.7 m)

W = 2,793 J

Solving for P

Therefore, the amount of power output is 382.6 W.

Yan lang po alam ko, hope it helps:)

Not only you can get the answer of **who calculator height**, you could also find the answers of Directions: Identify if, Problem Solving: Analyze, 4889 15m x, 1. After finishing, and 5. A 12.