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Effectus [21]
2 years ago
9

If the mass of the egg is 60 grams (0.06 Kg), and the mass of your device is 0.5 Kg, calculate the Force of Gravity on your devi

ce with the egg included. [F = m*a, acceleration from gravity is 9.8 m/s2]
Physics
1 answer:
Mashcka [7]2 years ago
5 0

Answer:

Force of gravity is 5.488 N.

Explanation:

Given:

Mass of the egg (m) = 60 g = 0.06 kg

Mass of the device (M) = 0.5 kg

Acceleration due to gravity (g) = 9.8 m/s²

Combined mass of the egg and device is the sum of the two masses. So,

Combined mass = Mass of egg + Mass of device

Combined mass = m+M=0.06+0.05=0.56 kg

According to Newton's second law, the net force acting on a system is equal to the product of its mass and acceleration acting on it due to the force.

Here, the force is gravitational pull of Earth. So, acceleration will be acceleration due to gravity.

Therefore, the force of gravity acting on the combined mass system is given as:

F_g=(m+M)g\\\\F_g=0.56\times 9.8\\\\F_g=5.488\ N

Force of gravity is 5.488 N.

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A thin, light wire 75.2 cm long having a circular cross section 0.560 mm in diameter has a 25.2 kg weight attached to it, causin
blsea [12.9K]

Answer:

The stress is calculated as 1.003\times 10^{9}\ Pa

Solution:

As per the question:

Length of the wire, l = 75.2 cm = 0.752 m

Diameter of the circular cross-section, d = 0.560 mm = 0.560\times 10^{- 3}\ m

Mass of the weight attached, m = 25.2 kg

Elongation in the wire, \Delta l = 1.10\ mm = 1.10\times 10^{- 3}\ m

Now,

The stress in the wire is given by:

Stress,\ \sigma = \frac{Force,\ F}{Area,\ A}          (1)

Now,

Force is due to the weight of the attached weight:

F = mg = 25.2\times 9.8 = 246.96\ N

Cross  sectional Area, A = \pi (\frac{d}{2})^{2} = \pi (\frac{0.560\times 10^{- 3}}{2})^{2} = 2.46\times 10^{- 7}\ m^{2}

Using these values in eqn (1):

\sigma = \frac{246.96}{2.46\times 10^{- 7}} = 1.003\times 10^{9}\ Pa  

8 0
2 years ago
A 0.10 kg baseball travelling at 40 m s−1 hits straight back to the pitcher at 55 m s−1. The contact time is 0.01 seconds. What
Ilia_Sergeevich [38]

Answer:

1.5 kgms⁻¹

Explanation:

Momentum can be defined as "<em>mass in motion</em>."  

The amount of momentum that an object has is dependent upon two factors

  • mass of the moving object  
  • speed of motiom 

when there is a change in the velocity , it creates a change in momentum also

when we consider that we can mathematically show this,In terms of an equation,

Change in momentum    (ΔΡ) = m(Δv)

where (Δv) - change in velocity

<em>(Δv) = final velocity - initial velocity</em>

Change in momentum (ΔΡ) = m(Δv)

                                             = 0.1×([55-40])

                                             = 1.5 kgms⁻¹

     

7 0
2 years ago
The table below describes some features of methods used to generate electricity. What is method 3?
blondinia [14]

Answer:

dam/hydro power

Explanation:

estuary is the place where rivers meet the ocean, there are a lot of currents there (waves...) so it likely means thery use a dam or some sort of way of collecting electricity from the motion of the water there. many birds live in estuaries because of being able to find fish to feed from

4 0
2 years ago
Which row shows what happens to the temperature of a solid as it melts and what happens to the temperature when
frez [133]

When ice melts, its temperature doesn't change ... ice at 32 degrees becomes water at 32 degrees.

When water boils, its temperature doesn't change ... water at 212 degrees becomes steam at 212 degrees.

The row that says both of these is row-D .

4 0
3 years ago
Define infer in science.
tia_tia [17]

Answer :Scientific Definition of Inference

In science, there are a few different types of inferences, but in general an inference is: “An educated guess made through observation.” You might use these inferences to share a potential reason why something happens or how it happens.

Explanation:

8 0
3 years ago
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