3 years ago

Which of the following statements is true?

Physics

2 answers:

viva [34]3 years ago

4 0

Statement B is correct.

serg [7]3 years ago

4 0

Answer:

Explanation:

Most substances found in nature, wood, soil and rocks, are mixtures of chemical compounds.

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The basketball coach tells his team to run sprints back and forth across the court, which is 30 m long. They start at the left e

sp2606 [1]

Distance is the total length of an object's path. Displacement is the overall change in position, ie. how far an object is from its initial position.

The court is 30 m long, so a path going back and forth once is 60 m long. Going along this path 6 times totals 360 m.

The end point is the same as the starting point, so the displacement is 0 m.

5 0

2 years ago

A piece of metal is 4 cm by 10 cm<br>by 2 cm. Find its mass if it has a<br>density of 2 g/cm'.

harina [27]

Answer:

m=ρV

V=LxWxD

V=4x10x2=80

m=2*80=160 grams

Explanation:

Mass is equal to density multiply by volume of object. Volume of rectangle pice can be calculated by multiplying all sides.

3 0

3 years ago

5) Sally has a mass of 50 kg. She ran with a velocity of 20 m/s.

Ket [755]

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

$k = \frac{1}{2} m {v}^{2} \\$

m is the mass

v is the velocity

From the question we have

$k = \frac{1}{2} \times 50 \times {20}^{2} \\ = 25 \times 400 \\ = 10000$

We have the final answer as

Hope this helps you

7 0

2 years ago

How does a parallel circuit differ from a series circuit?

Levart [38]

A series circuit has only one path for current,
while a parallel circuit has more than one.

4 0

3 years ago

What is cohesion force

olchik [2.2K]

Answer:

The force of attraction between the molecules of the same substance

Explanation:

3 0

2 years ago