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3 years ago

BRAINLIEST AND 30 POINTS‼️‼️

Physics

1 answer:

kobusy [5.1K]3 years ago

5 0

Answer:

802.3kilo joules of energy represents 191.75 kilo calorie

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What is missing from this graph? (A) A title. (B) Axis labels. (C) A trendline.

SIZIF [17.4K]

Axis labels. We don’t know what is being compared with the data

5 0

3 years ago

Read 2 more answers

What is a watt equivalent to in terms of kilograms, meters and seco

Ierofanga [76]

1 watt = 1 joule per second

1 joule = 1 newton-meter

1 newton = 1 kg-meter per second²

Put it all together and you have . . .

1 watt = 1 kg-meter² / second³

5 0

3 years ago

If the momentum of a 1000 kg car travelling at 10 m/s was transferred completely to a 20.0 kg traffic barrier, what would the fi

denis-greek [22]

Answer:

d. 500 m/s

Explanation:

Momentum: This is the product of the mass of a body to its velocity, The S.I unit of momentum is kgm/s.

Mathematically, momentum can be expressed as,

M = mv....................... equation 1

Where M = momentum, m = mass, v = velocity

deduced from the question,

Momentum of the car = momentum of the barrier.

MV = mv ............................. Equation 1

Where M = mass of the car, V = velocity of the car, m = mass of the barrier, v = velocity of the barrier.

making v the subject of the equation,

v = MV/m........................ Equation 2

Given: M = 1000 kg, V = 10 m/s, m = 20 kg.

Substitute into equation 2

v = 1000(10)/20

v = 500 m/s.

Hence the speed of the barrier = 500 m/s

The right option is d. 500 m/s

8 0

4 years ago

You need to estimate the floor area of your unusual oval shaped living room from memory you remember that it is longer than wide

REY [17]

Answer:

Our estimate not done correctly because the width was unrealistic.

Explanation:

Given that,

Length = 6 m

Width = 0.5 m

We need to calculate the area of rectangular floor

Using formula of area

$A=l\times w$

Where, l = length

w= width

Put the value into the formula

$A=6\times0.5$

$A=3\ m^2$

We need to find why this estimate not done correct

Using given data

We can say that,

We assume width was unrealistic.

The length of room is 6 m.

We know that,

$1\ m=3.28\ feet$

So, the length would be 20 feet.

The width of room is 0.5 m.

The width of room would be 1.64 feet.

So, the area will be

$A=20\times1.64$

$A=32.8\ feet^2$

Hence, Our estimate not done correctly because the width was unrealistic.

4 0

3 years ago

Why is it important for an engineer who is designing a new home-cooling/heating system to have knowledge about the transfer of h

MrMuchimi

Answer:

so he can know where to put the heating things so he will know which place will trap the most heat. He will also need to know that depending on where he puts the cooling system, where it will make the most use.

Explanation:

4 0

3 years ago