Ask question

Ask question

All categories

3 years ago

9

Hydrogen bonds are weaker than the bond that holds hydrogen to oxygen in a

1 answer:

gulaghasi [49]3 years ago

5 0

Answer:

Your answer is false

Explanation:

You might be interested in

Based on what you know about how light travels, explain why

Mkey [24]

Answer:

you can't see your back because your neck can only move in fixed direction

8 0

3 years ago

Read 2 more answers

The metric system is now known as the international system of units.<br> a. T<br> b. F

inn [45]

<span>The metric system is the oldest name for the international system of units. The answer is <u>a. True. </u>SI unit or the international systems of units are based on seven basic units; the meter, kilogram, second, ampere, Kelvin, candela and mole. All of these basic units are divided into multiples by a power of ten. For example in meters, 1 meter is equal to: 1000 millimeter, 100 centimeter, 10 decimeter, 0.1 decameter, 0.01 hectometer, 0.001 kilometer and so on and so forth.</span>

6 0

3 years ago

How can speed be defined

Anna11 [10]

Explanation:

C) distance / time

.......

6 0

3 years ago

Read 2 more answers

A children's roller coaster is released from the top of a track. If its maximum speed at ground level is 3 m/s, find the height

san4es73 [151]

Answer:

h = 0.46 m

Explanation:

According to the law of conservation of energy:

Potential Energy Lost by Roller Coaster = Kinetic Energy Gained by Roller Coaster

$mgh = \frac{1}{2}mv^2\\\\2gh = v^2\\\\h = \frac{v^2}{2g}$

where,

h = height = ?

v = speed at bottom = 3 m/s

g = acceleration due to gravity = 9.81 m/s²

Therefore,

$h = \frac{(3\ m/s)^2}{(2)(9.81\ m/s^2)}$

<u>h = 0.46 m</u>

4 0

3 years ago

If the knee has coordinates of (1.2,2.7) and the ankle has coordinates of (1.5,2.1), with the shank weighing 3.2kg, what is the

Mars2501 [29]

Answer:

The value is $I = 0.48 \ kg m^2$

Explanation:

From the question we are told that

The coordinate of the knee is $knee = (1.2,2.7)$

The coordinate of the ankle is $ankle = (1.5,2.1)$

The mass of the shank is $m = 3.2 \ kg$

Generally the length between the knee and the ankle is mathematically represented as

$D = \sqrt{( 1.5 - 1.2)^2+ [ 2.1- 2.7]^2 }$

=> $D =0.67 \ m$

Generally the moment of inertia of the shank about the proximal end point is mathematically represented as

$I= m * \frac{D^2}{3}$

=> $I = 3.2 * \frac{0.67^2}{3}$

=> $I = 0.48 \ kg m^2$

3 0

3 years ago