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xenn [34]
3 years ago
8

The diagram below shows a flat mirror reflecting

Physics
2 answers:
egoroff_w [7]3 years ago
7 0

Answer:

c

Explanation

your welcome

sukhopar [10]3 years ago
6 0

Answer:

TO MEASURE THE ANGLES OF RAYS

Explanation:

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A screwdriver is used to pry the lid off a paint can. The resistance arm is 0.5 cm long and the effort arm is 20 cm long. What i
Lunna [17]

Answer:

40

Explanation:

Mechanical advantage = effort arm / load arm

MA = 20 cm / 0.5 cm

MA = 40

4 0
3 years ago
Uma massa de 500 Kg desloca-se com velocidade 58 km por hora. Calcule o módulo de sua quantidade por movimento
Simora [160]

The momentum of the object is 8050 kg m/s

Explanation:

The momentum of an object is defined as

p=mv

where

p is the momentum

m is the mass

v is the velocity of the object

For the object in this problem, we have

m = 500 kg is its mass

v = 58 km/h is its velocity

Converting the velocity into m/s,

v=58 \frac{km}{h}\cdot \frac{1000 m/km}{3600 s/h}=16.1 m/s

Therefore now we can find the momentum of the object:

p=(500)(16.1)=8050 kg m/s

Learn more about momentum:

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7 0
4 years ago
Please need help on this
mote1985 [20]

-- Whether an object floats or sinks in water depends on whether its density is more or less than the density of water.

-- The density of the rock didn't change when she threw it into the lake.

-- The density of the water didn't change when she threw the rock into the lake.

-- The density of anything never depends on how much of it you have.

-- If the rock sank in two ounces of water, it'll sink in a billion gallons of water.

--  Choose ' <em>A </em>' .

3 0
3 years ago
Read 2 more answers
In a circuit of 2 lamps in parallel if the current in one lamp is 2a the current in the other lamp is?
ioda

In a circuit having 2 lamps are connected in parallel to a battery

then the two lamps will be having the same potential as the battery

i.e

V_{1} = V_{2} = V_{battery}

As per Ohm's law,

I_{1} = \frac{V_{1}}{R_{1}} and I_{2} = \frac{V}{R_{2} }

In other words, each lamp's current is inversely related to its individual resistance. We only know the current in one of the bulbs in this specific instance. We would therefore need further information in order to calculate the current in the other light. Therefore, there isn't enough data to make a statement.

Under the assumption that all physical parameters, including temperature, remain constant, Ohm's law asserts that "the voltage across a conductor is directly proportional to the current flowing through it".

Learn more about Ohm's law here

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4 0
2 years ago
If King Kong fell straight down from the top of the Empire State Building (380m high), what is his velocity just before “landing
Ghella [55]

Answer:

86.3m/s

Explanation:

Given parameters:

Height  = 380m

Unknown:

Final velocity  = ?

Solution:

To solve this problem, we use one of the kinematic equations.

   V²   = U²  + 2gH

V is the final velocity

U is the initial velocity  = 0m/s

g is the acceleration due to gravity

H is the height

           V²   = 0²  +    (2 x 9.8 x 380) = 7448

          V = 86.3m/s

8 0
3 years ago
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