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Stella [2.4K]
4 years ago
8

Each of us weighs a tiny bit less on the ground floor of a skyscraper than we do on the top floor. One reason for this is that _

____. A. the gravitational field is shielded inside the building B. the mass of the building attracts you upward slightly C. both A and B D. none of the above
Physics
1 answer:
OLga [1]4 years ago
6 0
B. the mass of the building attracts you upward slightly
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A spring with a spring constant of 165 N/m is attached to a 2.0 kg mass and set into motion.
marin [14]

Explanation:

We have,

Spring constant of the spring, k = 165 N/m

Mass, m = 2 kg

It is required to find the period of the mass-spring system. For the spring mass system, the period is given by :

T=2\pi \sqrt{\dfrac{m}{k} }\\\\T=2\pi \sqrt{\dfrac{2}{165} }\\\\T=0.69\ s

The frequency of vibration is reciprocal of its time period. So,

f=\dfrac{1}{T}\\\\f=\dfrac{1}{0.69}\\\\f=1.44\ Hz

So, the period of the mass-spring system is 0.69 s and frequency is 1.44 Hz.

3 0
4 years ago
An object is moving with constant speed in a
tankabanditka [31]

Answer:

both magnitude and direction

Explanation:

When an object moves in a circular path, its motion is called uniform circular motion. In this motion, the force acting on it is centripetal force and it is moving under centripetal acceleration. This type of force acts towards the centre of the circle.

In this type of motion, the speed remains constant while the velocity keeps on changing. The object's centripetal  acceleration remains constant in magnitude as well as direction.

Hence, the correct option is (3).

7 0
3 years ago
an electric clothes dryer has a resictance of 16 Ohms it drawes 15 A of current what is the voltage in volts of the wall outlet
Sedbober [7]

Answer:

V=240 volts

Explanation:

V=IR

V=15*16

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3 years ago
1500 kg car traveling at 15 m/s collides with a 500 kg moose which is at
zhannawk [14.2K]

Answer:

the car will slow down due to the change in speed

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3 years ago
Provide one example of this law during a physical change.
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