4 years ago

What happens to the Connecticut Energy of a snowball as it rolls across the lawn and gains mass?

Physics

1 answer:

statuscvo [17]4 years ago

6 0

I think it will go down like decrease minus or whatever you call it

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I need it due in 10 mins

ExtremeBDS [4]

Answer:

B. 14.4 N

Rotational speed (Angular Velocity) = 2

The Radius of the circle = 1.2 m

Velocity = Angular velocity × radius = 2×1.2 = 2.4 m/s

Centripetal force= mv²/r = 3 × 2.4×2.4/1.2 = 3 × 2.4 × 2

= 14.4 N

7 0

3 years ago

Determine the thrust produced if 1.5 x 10^3 kg of gas exits the combustion chamber each second, with a speed of 4.00 x 10^3 m/s.

ozzi

Answer:

The thrust is $6\times 10^6\ N$

Explanation:

Given that,

Mass of gas, $m=1.5\times 10^3\ kg$

The rate at which the gas is expelling, $\dfrac{dv}{dt}=4\times 10^{3}\ m/s$

We need to find the thrust produced by the gas.

We know that force is equal to the rate of change of momentum. So,

$F=\dfrac{p}{t}$

Also, p = mv

$F=\dfrac{mv}{t}$

So,

$F=1.5\times 10^3\times 4\times 10^3\\\\F=6\times 10^6\ N$

So, the thrust is $6\times 10^6\ N$

3 0

4 years ago

The heat released by burning candle is an example of thermal energy

yawa3891 [41]

False the correct answer is chemical bonds instead of thermal energy

4 0

3 years ago

Read 2 more answers

If a car used 260,000 W of power to complete a race in 15 s, how much work did the car do?

suter [353]

Answer: 3.9 MW

Explanation:

1 W = 1 J/s

260000 J/s (15 s) = 3,900,000 = 3.9 MW

3 0

3 years ago

-Plz Help Meh-<br> Calculate the acceleration of a car if the force is 450N and the mass is 1300kg.

Allisa [31]

Answer:

Explanation:

F=Ma

450=1300×a

Ans=0.346m/s²

4 0

3 years ago