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3 years ago

Why does a skateboard on top of a ramp have potential energy.

Mathematics

1 answer:

saveliy_v [14]3 years ago

3 0

Answer:

Conservation of Energy

Step-by-step explanation:

This is because of friction which changes kinetic energy into heat. ... When a skater is at the top of the ramp he has the highest amount of potential energy. Kinetic energy is the energy of motion. The faster the skater moves the more kinetic energy he has.

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Find the value of x. The diagram is not to scale

Svetllana [295]

Answer:B-70

Step-by-step explanation:

from the figure, In $\triangle ABC\ \text{and}\ \triangle ADE$

$\Rightarrow \dfrac{45}{45}=\dfrac{24}{24}\\\Rightarrow \dfrac{1}{1}=\dfrac{1}{1}$

$\therefore \text{two triangles are similar}$

Thus we can write

$\Rightarrow \dfrac{35}{x}=\dfrac{45}{45+45}\\\\\Rightarrow x=35\times \dfrac{90}{45}=35\times 2=70$

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3 years ago

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Kamila [148]

Answer:

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4 years ago

Read 2 more answers

Question 13 (2 points)

Eddi Din [679]

Answer:

The math club has 22 students, and the art club has 34 students.

Step-by-step explanation:

Given that there are a total of 56 students between the art club and the math club, and that the art club has 12 more students than the math club, to determine how many students there are in each club, the following calculation must be performed:

X + X + 12 = 56

2X + 12 = 56

2X = 56 - 12

X = 44/2

X = 22

Thus, the math club has 22 students, and the art club has 34 students.

4 0

3 years ago

Solve solve the following equations 2x (x minus 5) close + 3(x-2)=8+7(x-4)

stiv31 [10]

Step-by-step explanation:

2x(x-5)+3(x-2)=8+7(x-4)

2x²-10x+3x-6=8+7x-28(Group like terms)

2x²-10x+3x-7x=8-28+6

2x²-7x-7x=-20+6

2x²-14x=-14(Divide both sides by -14)

2x²-x=1

2x=1

x=½

Hope you get it please someone should verify....

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3 years ago

Dolores is standing on a horizontal ground level with the base of the Statue of Liberty in New York City. The angle formed by th

Anastasy [175]

Tanα=y/x

x=y/tanα, we are told that y=93m and α=26.3°

x=93/tan26.3 m

x≈188m (to nearest whole meter)

6 0

3 years ago