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3 years ago

You drop an object from a second floor window. Describe the speed of the object after 1 second

Physics

2 answers:

Goshia [24]3 years ago

6 0

Objects will accelerate more by 10 (m/s)2

jasenka [17]3 years ago

3 0

If the object and the window are on Earth, then the object will be falling at 9.8 meters per second after one second.

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If an object has a mass of 4 kg and an acceleration of 8 m/s2, what is the force this object exerts?

Slav-nsk [51]

The force acting on the object will be 32 N.

Newton's second law of motion states that, "the force is equal to the change in momentum per change in the time". The mathematical form of the law is given below.

$F = \frac{dP}{dt}=\frac{d(mv)}{dt}=m\frac{dv}{dt}=ma$

Where P = momentum, t = time, m =mass, v = velocity, a = acceleration and F = force.

The mass of the object is 4 kg and acceleration is 8 m/s^2. Substitute the values in the equation and we will get the force.

F = ma

F = 4 kg * 8 m/s^2

F = 32 kg.m/s^2

F = 32 N

To know more about force here:

brainly.com/question/13191643

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1 year ago

Which food must be cooked at to at least 145 f 63c cheese fries baked potatoes steamed broccoli for a buffet table scrambled egg

pantera1 [17]

The dish that has to be cooked to at least 145°f is scrambled eggs. Option C is correct.

<h3>What is temperature?</h3>

Temperature directs to the hotness or coldness of a body. It is denoted by T.Measured mainly in the °C.

For good food safety beef, pig and eggs must be cooked at a temperature of 145°f. A minimum of 15 seconds must pass with the temperature held steady.

The temperature range in which the majority of bacteria thrive and multiply quickly is known as the temperature danger zone.

To keep away the eggs from the bacteria they must be cooked to at least 145°f. Scrambled eggs are the food that must be cooked to at least 145°f.

Hence, option C is correct.

To learn more about the temperature refer to the link;

brainly.com/question/7510619

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6 0

2 years ago

De ce nu putem masura o bandă

icang [17]

I don’t speak Spanish sorry but I wish I could help you

3 0

3 years ago

Read 2 more answers

Who might be experiencing psychosis?

aleksandrvk [35]

Answer:

Explanation:

I think the answer is D, because of hallucinations

4 0

3 years ago

As more and more resistors are added in parallel to a circuit, the equivalent resistance of the circuit ____________ (increases,

Anestetic [448]

Answer:

Decreases, Increases

Explanation:

Resistance is parallel can be calculated using

1/Req = 1/R1 + 1/R2 + 1/R3 +....

Then, as more resistor is added in parallel the equivalent resistance is reduced.

Let use a simple sample

Let all the resistor have equal resistances

Let say R = R1 = R2 = R3 =...Rn

Then, 1/Req = 1/R1 + 1/R2 + 1/R3 +....

1/Req = 1/R + 1/R + 1/R +.... 1/Rn

Req = R/n

Check attachment on how I got that.

This implies that, the equivalent resistance will always be less than the original resistance, since n>1

So, as n increases (I.e. as the number of resistance increases), the equivalent resistance reduces.

B. Now, to know if the current reduces or increases

Using Ohms law

V = iR

Then, I = V/R

So, let assume the voltage is constant, then, the current is inversely proportional to the resistance, so as we know that the resistance is reducing, then the current will be increasing.

So current increase as we add more resistor in parallel to a circuit

3 0

3 years ago