3 years ago

Why do bolt cutters have long handles and short blades laws of physics?

1 answer:

4 0

Long handle length x small force = short blade length x large force
So if the blades are also sharp it will cut through wooden branches etc

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A large, semi-truck hauling a full load and a small car are traveling in the same direction. As they approach a sharp curve in t

777dan777 [17]

Semi-truck because it has more inertia

5 0

3 years ago

A stone tied at one end of the string is whirled in vertical circle, where is the tension in the string be maximum and minimum?

Ber [7]

<h3>answer</h3>

The minimum velocity required for a object to rotate in a verticle plane is v

gr.

So, at bottom point, T

max

=mv

/r+mg=6mg.

At top-most point velocity is v

=gr.

So, T

min

=mv

/r−mg=0

So T

max

−T

min

=6mg=2×g⇒m=1/3 kg

4 0

3 years ago

Clouds are formed when water vapor in the atmosphere becomes a liquid and condenses. Condensation is a result of the difference

aleksklad [387]

Answer:

B temperature and dew point temperature

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2 years ago

if a student lifts their weight of 450 newtons up a set of stairs 5 meters high, how much work did they do?

irina1246 [14]

Answer:

2,250J

Explanation:

W = Fs = (450)(5) = 2,250

4 0

3 years ago

Read 2 more answers

A car is initially moving at 20 m/s east and a little while later it is moving at 10 m/s north. Which of the following best desc

Nina [5.8K]

Answer:d

Explanation:

Given

First car is moving towards east with velocity 20 m/s

$\vec{v_1}=20\hat{i}$

then it turns towards north then velocity is

$\vec{v_2}=10\hat{j}$

suppose car takes t sec to change its path so average acceleration is given by

$a=\frac{v_2-v_1}{t}$

$a=\frac{1}{t}(10\hat{j}-20\hat{i})$

So average acceleration is towards North of west.

5 0

3 years ago