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3 years ago

Please help me!

Physics

2 answers:

mihalych1998 [28]3 years ago

7 0

The answer would be mass movement

Kay [80]3 years ago

5 0

Runoff because the mud is a liquid and moves on an amount of water that is in it like with quicksand

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An archer puts a 0.30-kg arrow to the bowstring. An average force of 201 N is exerted to draw the string back 1.3 m. Assuming th

vovikov84 [41]

Answer:

41.74 m/s

Explanation:

The energy used to draw the bowstring = the kinetic energy of the arrow.

Fd = 1/2mv²................................ Equation 1

Where F = force, d = distance move string, m = mass of the arrow, v = speed of the arrow.

make v the subject of the equation

v = √(2Fd/m)...................... Equation 2

Given: F = 201 N, m = 0.3 kg, d = 1.3 m.

Substitute into equation 2

v = √(2×201×1.3/0.3)

v = √(1742)

v = 41.74 m/s.

Hence the arrow leave the bow with a speed of 41.74 m/s

3 0

3 years ago

Read 2 more answers

Select all that apply. The force that opposes the start of motion is referred to as _____.

77julia77 [94]

The correct answers are starting friction and static friction

Friction slows down all forces, but starting friction slows down or stops completely the start of motion.

8 0

2 years ago

Read 2 more answers

The Carson family's pancake recipe uses 2 teaspoons of baking powder for every 1/3 of a teaspoon of salt. How much baking powder

melomori [17]

Answer:

6 teaspoons of baking powder required.

Explanation:

Given that

According to the recipe of pancake,

For every $\frac{1}{3}$ teaspoon of salt, 2 teaspoons of baking baking powder is required.

To find:

How much baking powder will be needed, if 1 teaspoon of salt was used ?

Solution:

This problem can be solved using ratio.

$\frac{1}3$ teaspoon of salt : 2 teaspoons of baking powder

Let us multiply the above ratio with 3.

$\frac{1}{3}\times 3$ teaspoon of salt : 2 $\times$ 3 teaspoons of baking powder

1 teaspoon of salt : 6 teaspoons of baking powder

So, answer is 6 teaspoons of baking powder required.

Also, we can use the unitary method:

$\frac{1}3$ teaspoon of salt needs = 2 teaspoons of baking powder

1 teaspoon of salt needs = $\frac{2}{\frac{1}3}$ teaspoons of baking powder

1 teaspoon of salt needs = 2 $\times$ 3 = 6 teaspoons of baking powder needed

So, the answer is:

6 teaspoons of baking powder required.

5 0

3 years ago

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Which vector is the sum of the vectors shown below?

qaws [65]

Where is the picture??

4 0

2 years ago

Nuclear power is regarded as a clean source of energy because it doesn't produce or

Nadya [2.5K]

Emit greenhouse gases

Explanation:

Nuclear power is regarded as a clean energy source because it doesn't produce or emit greenhouse gases.

Greenhouse gases are mostly generated by the use of fossil fuels that pollutes the environment causing surging global temperature.

Nuclear power is produced by the splitting of radioactive minerals in rods. The process releases a large amount of energy. When the fuel elapses, only radioactive wastes remains.

There is no production of any greenhouse gas in the process of harnessing nuclear energy.

This is why it is considered a clean energy source.

learn more:

Non-renewable resources brainly.com/question/2948717

#learnwithBrainly

8 0

3 years ago