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kumpel [21]
3 years ago
13

A loader sack of total mass

Physics
1 answer:
vampirchik [111]3 years ago
8 0

Question: A loader sack of total mass

is l000 grams falls down from

the floor of a lorry 200 cm high

Calculate the workdone by the

gravity of the load.​

Answer:

19.6 Joules

Explanation:

Applying

W = mgh........................ Equation 1

Where W = Workdone by gravity on the load, m = mass of the loader sack, h = height, g = acceleration due to gravity

From the question,

Given: m = 1000 grams = (1000/1000) kilogram = 1 kg, h = 200 cm = 2 m

Constant: g = 9.8 m/s²

Substitute these values into equation 1

W = (1×2×9.8)

W = 19.6 Joules

Hence the work done by gravity on the load is 19.6 Joules

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Hello!

We can use the following equation for calculating power dissipated by a resistor:
P = i^2R

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i = Current through resistor (2.0 A)
R = Resistance of resistor (50Ω)

Plug in the known values and solve.

P = (2.0^2)(50) = \boxed{\text{ B. }200 W}

7 0
1 year ago
Please !!! I really need help !!! How do I understand these ?!!!!
trasher [3.6K]

Answer

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3 years ago
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To understand the basic idea behind how a reciprocating internal combustion engine works, it is helpful to have a good mental image of how "internal combustion" works.

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3 years ago
Which of the following is likely to contribute to geological events that take place on Earth?
Dennis_Churaev [7]
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5 0
3 years ago
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Only 35 % of the intensity of a polarized light wave passes through a polarizing filter. What is the angle between the electric
Nana76 [90]

Answer:

The angle between the electric field and the axis of the filter is 54⁰

Explanation:

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I = I_oCos^2 \theta

where;

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I₀ is the intensity of the incident light

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If only 35 % of the intensity of a polarized light wave passes through a polarizing filter, then the ratio of the intensity of the transmitted light to that of the intensity of the incident light is given by;

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Therefore, the angle between the electric field and the axis of the filter is 54⁰

3 0
2 years ago
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