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bazaltina [42]
3 years ago
7

Name the property illustrated be each statement. If t - 13 = 52, then 52 = t - 13

Physics
2 answers:
sweet [91]3 years ago
8 0

Answer:

Commutative

Explanation:

In a binary operation the commutative property states that the order of the operations does not matter For, example a + b is equal to b + a. So, it does not matter if we add b to a first or a to b first i.e., the order does not matter. The statement shown here is

If t - 13 = 52, then 52 = t - 13 is displaying the commutative property.

Natali5045456 [20]3 years ago
3 0
The property illustrated to each statement is commutative because it shows that for some value of t both statements are equal. 
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A uniform solid disk of radius 1.60 m and mass 2.30 kg rolls without slipping to the bottom of an inclined plane. If the angular
bagirrra123 [75]

To solve this problem we will use the concepts related to energy conservation. Both potential energy, such as rotational and linear kinetic energy, must be conserved, and the gain in kinetic energy must be proportional to the loss in potential energy and vice versa. This is mathematically

PE = KE_{lineal} + KE_{rotational}

mgh = \frac{1}{2}mv^2 +\frac{1}{2} I\omega^2

Where,

m = mass

v = Tangential Velocity

\omega = Angular velocity

I = Moment of Inertia

g = Gravity

Replacing the value of Inertia in a Disk and rearranging to find h, we have

mgh = \frac{1}{2}mv^2 +\frac{1}{2} I\omega^2

mgh = \frac{1}{2}mr^2\omega^2 + \frac{1}{2}(\frac{1}{2}mr^2)\omega^2 )

h = \frac{3}{4} \frac{r^2\omega^2}{g}

Replacing,

h = \frac{3}{4} \frac{(1.6)^2 (5.35)^2}{9.8}

h = 5.607m

Therefore the height of the inclined plane is 5.6m

3 0
4 years ago
An 18-mm-wide diffraction grating has rulings of 710 lines per millimeter. monochromatic light of wavelength 506 nm wavelength i
aliina [53]
W= 18*10^-3m 
N= 18*710 ( because you have 710 slits per mm ) = 12780 
lambda = 506*10^-9 

The first step is to workout d. 
d = w/N 
d =18*10^-3m/12780 
d =1.41*10^-6m 

The second step is to work out the maximum number of m. 
Since sin (theta) = less than 1, then m*lambda/d = less then 1,
therefore m= less than d/lambda 
( I know thats confusing but trust me ) 
so m is less than 1.41*10^-6m/506*10^-9 
= 2.7 
Therefore use m = 2 

Lastly put it all into the formula
dsin (theta) = m*lambda so:
theta = sin^-1(m*lambda/d) 
theta = sin^-1(2*506*10^-9/1.41*10^-6m) 
theta = 45.95 degrees or 46 degrees
7 0
4 years ago
What is the relationship between ozone and smog?
Irina18 [472]

smog  is a term used to describe air pollution that is a result of the interaction of sunlight with certain chemicals in the atmosphere. One of the primary components of photochemical smog is ozone. While ozone in the stratosphere protects earth from harmful UV radiation, ozone on the ground is hazardous to human health.

4 0
4 years ago
An 800 kg car is parked next to a 1000 kg car. Their centers of mass are 3.5 m apart. Find the gravitational force between them.
adoni [48]

Answer:

4.356e-6 Newtons

Explanation:

Using the equation for the force of gravity F=\frac{Gm_1m_2}{r^2}. The two masses are m1=800kg and m2=1000 kg. The value of G, the gravitational constant =6.67e-11. The problem states the distance between the center of masses of the two cars is 3.5 meters(r). Plugging in what we have from the problem, you will get 4.346e-6 newtons. This makes sense as gravity in itself is a weak force requiring extremely massive objects to result in a noticeable force.

4 0
3 years ago
If an object has a mass of 47 kg and it is moved 27 meters in 60 seconds, how much power was used?
Tamiku [17]

Answer: 207 W

Explanation: I assumed here that the object is moved vertically. If that is the case, the work done on the object is equal to its change in gravitational potential energy:

where

m = 47 kg is the mass of the object

g = 9.8 m/s^2 is the acceleration of gravity

is the change in height

Substituting,

Now we can calculate the power used, which is given by

Hope this helps I'm sorry if i'm wrong but I tried :(

5 0
4 years ago
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