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
svlad2 [7]
3 years ago
5

What is the mechanical energy of the cart on the right at position A. The

Mathematics
2 answers:
drek231 [11]3 years ago
6 0

Answer:

1800 J

Step-by-step explanation:

At point A when the cart is not in motion, it only has potential energy.

We know that potential energy is given by mgh where m is the mass of the cart, g is acceleration due to gravity and h is the height.

Substituting 12 kg for m, 10 m/s2 for g and 15 m for h then

PE= 12*10*15=1800 J

QveST [7]3 years ago
5 0

Answer:

1800

Step-by-step explanation:

P.E. =m.g.h = 12x10x15 = 1800 Joules

K.E/ = 1/2 mv2 = 1/2x12x02 = 0

P.E = 1800 | K.E. 0

M.E. = 1800 + 0 = 1800 Joules

You might be interested in
PLZ HELP ASAP. What is the measure of B?
KATRIN_1 [288]

Answer:

C. 55°

Step-by-step explanation:

Note the total measurement of angles for a triangle. The total measurement of all angles in a triangle = 180°

Note that m∠C is a right angle (as shown through the square), and that right angles = 90°

Subtract to find the measurement of the unknown angle (∠B)

∠B = 180 - (∠A + ∠C)

∠B = 180 - (35 + 90)

Simplify. Combine like terms. First, add (solve parenthesis), then subtract.

∠B = 180 - (125)

∠B = 55

m∠B = C. 55°

~

7 0
3 years ago
Read 2 more answers
The sum of the measures of angle 4,7, and _____ is equal to 180
8_murik_8 [283]
7 I think because if you would put a zero behind the 4 and 7 and add them together it will be 110 and all that's left if u subtract them from 180 is 70 (7)
6 0
3 years ago
An architect designs a castle tower for a new attraction at a popular amusement park. Blueprints of the tower, which is in the s
marin [14]

Answer:

<u>The surface area of the tower is 5,218.1 m²</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Height of the blueprint = 47 cm

Length of the blueprint = 23 cm

Width of the blueprint = 25 cm

Scale factor 1 : 96

2. Calculate the actual surface area of the tower and enter your answer in square meters with two decimal places.

Let's calculate the measurements of the actual tower:

Height of the blueprint = 47 * 96 = 4,512 cm = 45.12 m

Length of the blueprint = 23 * 96 = 2,208 cm = 22.08 m

Width of the blueprint = 25 * 96 = 2,400 cm = 24 m

Now, let's calculate the surface area of the tower, this way:

Surface area of the tower = 2* (24 * 22.08) + 2 * (45.12 * 22.08) + 2 * (45.12 * 24)

Surface area of the tower = 1,059.84 + 1,992.5 + 2,165.76

<u>Surface area of the tower = 5,218.1 m²</u>

4 0
3 years ago
The selling price of an item is $650 marked up from the wholesale cost of $450. Find the percent markup from wholesale cost to s
Katen [24]

Answer:

the price went up 44.44%

Step-by-step explanation:

200÷450×100

8 0
3 years ago
Read 2 more answers
Every one reading this please help! I don't understand this and I will give brainliest to the person that helps first with a goo
stira [4]
Since the area of the poster doesn't change by putting it in a frame, we presume the question is asking what the area of the framed poster is.

The length of the poster in its frame is ...
  (frame width on one side) + (poster length) + (frame width on the other side)
  2 in + 32 in + 2 in = 36 in

Likewise, the width of the poster in its frame is ...
  2 in + 24 in + 2 in = 28 in

The area of a rectangle 36 in by 28 in is the product of these dimensions:
  Area = (36 in)×(28 in) = (36×28) in² = 1008 in²
6 0
3 years ago
Read 2 more answers
Other questions:
  • A worker at a frozen yogurt store has 2 3/4 cups of frozen yogurt to give to customers as samples. The workers places 1/16 cup o
    9·1 answer
  • Heidi hikes two trails, the Big Trapezoid and the Little Trapezoid. The shorter base of the Big Trapezoid is 2 mi long, while th
    11·1 answer
  • Find the sum: 4√3+11√12 <br> 15√15 <br> 15√3 <br> 26√3 <br> 48√3
    8·2 answers
  • Velida invested $3500 in a savings account with a yearly interest rate of 5% for 6 years. How much simple interest did she earn?
    9·1 answer
  • A rectangular prism is 4.1 feet long, 4.3 feet wide and 14 feet high. what is the volume of the rectangular prism
    9·1 answer
  • On the map the distance from A to B is 3 inches. Find the actual distance if the scale is 1 inch is to 8 miles
    12·1 answer
  • An electronics store sells DVD players and cordless telephone. The store makes a $75 profit on the sale of each DVD player (d) a
    11·1 answer
  • ART?
    10·2 answers
  • What is the value of ( 7 plus 2 cubed) x 9
    13·2 answers
  • Solve for n<br> n - 17=3
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!