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olganol [36]
3 years ago
15

a given box of 2 kg is in contact with the floor experiences an applied force of 150 form somebody pushing it.while in motion,it

also experiences a frictional force of 7n in the opposite direction​. Calculate the weight of the box
Physics
1 answer:
ladessa [460]3 years ago
6 0

Weight = (mass) x (gravity)

Weight = (2kg) x (9.8 m/s^2)

Weight = 19.6 N

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In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 1850 J of work is done on the gas
Oliga [24]

Answer:

The value of change in internal l energy of the gas = 1850 J

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Work done on the gas (W) =  - 1850 J

Negative sign is due to work done on the system.

From the first law  we know that Q = Δ U + W ------------- (1)

Where Q = Heat transfer to the gas

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W = work done on the gas

Since it is adiabatic compression of the gas so heat transfer to the gas is zero.

⇒ Q = 0

So from equation (1)

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6 0
3 years ago
A person spins a tennis ball on a string in a horizontal circle (so that the axis of rotation is vertical). At the point indicat
Ilya [14]

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direction does the axis of rotation tilt toward after the blow is the z- direction

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The CPM includes the following steps:

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In this instance, when Aaden decided to have a discussion with his significant other in his home using face-to-face communication, he is deciding on the channel or medium through which the communication will this place. By choosing face-to-face communication at his home, Aaden has determined what he believes is the most appropriate context for the conversation with his significant other, given the sensitive nature of the topic. In this way, Aaden has selected a channel of communication.

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