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il63 [147K]
3 years ago
14

. An unbalanced force of 500 N is applied to a 75 kg object. What is the acceleration of the object?

Physics
1 answer:
Hoochie [10]3 years ago
5 0

The acceleration of the object is 6.7 m/s^2

Explanation:

We can solve the problem by using Newton's second law, which states that the net force exerted on an object is equal to the product between the mass of the object and its acceleration:

F=ma

where

F is the net force

m is the mass of the object

a is its acceleration

For the object in this problem,

F = 500 N is the applied force

m = 75 kg is the force

Solving the equation for a, we find the acceleration:

a=\frac{F}{m}=\frac{500}{75}=6.7 m/s^2

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

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A motorist drives north for 35.0 minutes at 85.0 kph. He then stops for 15.0 minutes. The motorist then drives 130.0 km in 2.0 h
o-na [289]

Answer:

A. 216.36 \frac{km}{h}

B. 96.56 \frac{km}{h}

Explanation:

Let s_{1} be the distance in first part.

s_{1} = velocity × time

s_{1} = 85 × \frac{35}{60}

s_{1} = 49.58 km

Let s_{2} be the distance in first part.

s_{2} = 130 km

Average velocity = \frac{Total displacement}{Total time}

When second leg of the trip is

A. Toward north

Average velocity = \frac{[tex] s_{1} + s_{2}}{Total time}  [/tex]

Average velocity = \frac{130+49.58}{0.25+0.58}

Average velocity =216.36 \frac{km}{h}

B. Toward south

Average velocity = \frac{[tex] s_{1} - s_{2}}{Total time}  [/tex]

Average velocity = \frac{130-49.58}{0.25+0.58}

Average velocity =96.56 \frac{km}{h}


3 0
3 years ago
An object in free fall has a velocity of 5m/s in the upward direction. What is the instantaneous velocity of the object one seco
aleksandrvk [35]

Answer:

Explanation:

Near the earth's surface where gravity is approximately 10 m/s² downward

v = u + at

v = 5 + (-10)(1) = -5 m/s

so it has the same speed but in the opposite (downward) direction.

7 0
3 years ago
How much energy is required to ionize hydrogen when it is in the n = 5 state?
PtichkaEL [24]

Answer:

0.544 eV

Explanation:

To ionize the hydrogen atom n_f\rightarrow infinte

So the required energy is \Delta E=13.6(\frac{1}{n_i^2}-\frac{1}{n_f^2}) as  n_f\rightarrow infinte

So \Delta E=13.6\frac{1}{n_i^2}

We have to calculate the energy required to ionize hydrogen atom when it is in n=5

So the energy should be less than \Delta E=13.6\frac{1}{5^2}=0.544eV

4 0
3 years ago
What kind of substance changes its shape but not its volume when it is placed in a new container
Hitman42 [59]

Answer:

liquid.

Explanation:

That is almost the definition of a liquid. So the answer is a liquid.

6 0
3 years ago
Describe why the overall charge of it Atom is 0
nata0808 [166]

Answer:

Explanation:

Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral.

3 0
3 years ago
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