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vaieri [72.5K]
3 years ago
14

Is there an object that can lift a 45-N object

Physics
1 answer:
Pavel [41]3 years ago
8 0

Sure.  I can lift it with one hand.  Also, any other object that weighs
more than 45-N can lift it, if they're tied to opposite ends of a string
and the string passes over a pulley.


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What is the magnitude of your displacement when you follow directions that tell you to walk 225 m in one direction, make a 90° t
Gekata [30.6K]

Start by facing East. Your first displacement is the vector

<em>d</em>₁ = (225 m) <em>i</em>

Turning 90º to the left makes you face North, and walking 350 m in this direction gives the second displacement,

<em>d</em>₂ = (350 m) <em>j</em>

Turning 30º to the right would have you making an angle of 60º North of East, so that walking 125 m gives the third displacement,

<em>d</em>₃ = (125 m) (cos(60º) <em>i</em> + sin(60º) <em>j</em> )

<em>d</em>₃ ≈ (62.5 m) <em>i</em> + (108.25 m) <em>j</em>

The net displacement is

<em>d</em> = <em>d</em>₁ + <em>d</em>₂ + <em>d</em>₃

<em>d</em> ≈ (287.5 m) <em>i</em> + (458.25 m) <em>j</em>

and its magnitude is

|| <em>d</em> || = √[ (287.5 m)² + (458.25 m)² ] ≈ 540.973 m ≈ 541 m

7 0
3 years ago
1. A boulder fell from a small cliff and accelerated towards a car below at 9.8 m/s^2. The
natita [175]

Answer:

Mass = 10102.04 kilograms.

Explanation:

Given the following data;

Acceleration = 9.8m/s²

Force = 99000N

To find the mass;

Mass = force/acceleration

Mass = 99000/9.8

Mass = 10102.04 kilograms.

Therefore, the mass of the boulder is 10102.04 kilograms.

3 0
3 years ago
Two moles of an ideal gas at 3.0 atm and 10 °C are heated up to
ololo11 [35]

Answer:

Explanation:

Two moles of an ideal gas at 3.0 atm and 10°C are heated up to 150 °C. If the volume is held constant during this heating, what is the final pressure? a. 4.5 atm.

5 0
3 years ago
Which box depicts the tissue level of organization?<br> A) P <br> B) Q <br> C) R <br> D) S
sveta [45]
The right answer is Q).

Explanation:
P) Depicts organ level of organization.
R) Depicts cellular level of organization.
S) Depicts Organ System level of organization.
8 0
3 years ago
Ampere second could be the unit of : O power O conductance O energy O charge
ASHA 777 [7]

Answer:

Charge

Explanation:

Unit of ampere is defined as the coulomb of charge per unit time which is in seconds.

i=\frac{q}{t}

Here, i is in ampere, qis the charge which is in coulomb, and the t is in sec which is time.

Therefore,

q=it

Charge=ampere-second.

Therefore, the unit ampere-second will represent the charge.

8 0
4 years ago
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