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3 years ago

What affects how an object falls toward earth?

Physics

2 answers:

Ad libitum [116K]3 years ago

5 0

And also the gravitational acceleration varies with respect to distance from the surface.

ioda3 years ago

4 0

1. Air resistance (therefore, the air density, shape (aerodynamic or not), and surface area affected
2. The gravitational acceleration constant (g = 9.8 m/s^2 on Earth)

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N a scientific investigation, what is the name for a prediction that can be tested?

ELEN [110]

A hypothesis is an educated prediction that can be tested.

8 0

4 years ago

A man has a mass of 110 kg. What is his weight? A. 110N B. 1325 N C. 559 N D. 1078 N

Slav-nsk [51]

Answer:

Option D

Explanation:

Given:

Mass = m = 110 kg

Acceleration due to gravity = g = 9.8 m/s

Required:

Weight = W = ?

Formula

W = mg

Solution:

W = (110)(9.8)

W = 1078 N

7 0

3 years ago

An object of mass 2.0 kg is attached to the top of a vertical spring that is anchored to the floor. The unstressed length of the

poizon [28]

Answer:

The value is $A = 0.014 \ m$

Explanation:

From the question we are told that

The mass of the object is $m = 2.0 \ kg$

The unstressed length of the string is $l = 0.08 \ m$

The length of the spring when it is at equilibrium is $l_e = 5.9 \ cm = 0.059 \ m$

The initial speed (maximum speed)of the spring when given a downward blow $v = 0.30 \ m/s$

Generally the maximum speed of the spring is mathematically represented as

$u = A * w$

Here A is maximum height above the floor (i.e the maximum amplitude)

and $w$ is the angular frequency which is mathematically represented as

$w = \sqrt{\frac{k}{m} }$

$u = A * \sqrt{\frac{k}{m} }$

=> $A = u * \sqrt{\frac{m}{k} }$

Gnerally the length of the compression(Here an assumption that the spring was compressed to the ground by the hammer is made) by the hammer is mathematically represented as

$b = l -l_e$