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34kurt
3 years ago
10

Why do you think that this type of fossil is called a print fossil?

Physics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.

Answer ☝ on pic that is non print fossil of dinousor

Answer ☝ on the pic is print fossil of turtle

# CARRY ON LEARNING

# SORRY

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A box is being pushed from the left with a force of 5 N. No force is being applied from the right.
Sergio039 [100]

Answer:

The box will move to the right with increasing speed

Explanation:

According to Newton's second law:

F=ma (1)

where

F is the net force on an object

m is the mass of the object

a is its acceleration

For the box in this problem, there is only one force acting on it: a force of 5 N from the left (so, to the right). This means that according to (1) the box will experience an acceleration: the direction of the acceleration is the same as the direction of the net force (so, to the right), therefore the box will move to the right and its speed will continue increasing due to fact that it is being accelerated.

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Answer:

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3 years ago
Magnesium oxide is a binary ionic compound. From its formula, MgO, how do you know that Mg is the metal?
Elanso [62]
Because of the location of Mg on the periodic table.
7 0
3 years ago
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This graph shows the energy of a reaction over time. Which statement is
kirill115 [55]

Answer: D.

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3 0
3 years ago
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A roller coaster car is going over the top of a 15-m-radius circular rise. The passenger in the roller coaster has a true weight
konstantin123 [22]

Answer:

v = 7.67 m/s

Explanation:

The equation for apparent weight in the situation of weightlessness is given as:

Apparent Weight = m(g - a)

where,

Apparent Weight = 360 N

m = mass passenger = 61.2 kg

a = acceleration of roller coaster

g = acceleration due to gravity = 9.8 m/s²

Therefore,

360 N = (61.2 kg)(9.8 m/s² - a)

9.8 m/s² - a = 360 N/61.2 kg

a = 9.8 m/s² - 5.88 m/s²

a = 3.92 m/s²

Since, this acceleration is due to the change in direction of velocity on a circular path. Therefore, it can b represented by centripetal acceleration and its formula is given as:

a = v²/r

where,

a = centripetal acceleration = 3.92 m/s²

v = speed of roller coaster = ?

r = radius of circular rise = 15 m

Therefore,

3.92 m/s² = v²/15 m

v² = (3.92 m.s²)(15 m)

v = √(58.8 m²/s²)

<u>v = 7.67 m/s</u>

7 0
3 years ago
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