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3 years ago

What is the S.I unit of weight

Physics

2 answers:

lutik1710 [3]3 years ago

8 0

Answer:

Newton, symbol N

Explanation:

It is the newton, whose symbol is N.

crimeas [40]3 years ago

3 0

Answer:

the S.I unit of weight is Newton

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When heat or any other kind of energy move from one place
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3 years ago

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A man pushes a shopping cart at a constant speed. What happens if the man increases the force on the cart?

Bezzdna [24]

Answer:

The cart would speed up.

Explanation:

According to Newton's 1st law, object subjected to no force, or net force 0, would have a constant speed. In our case the cart is initially at constant speed, meaning the man exerts a force that is equal to friction force. If he increases the force on the cart, the net force would no longer be 0. The cart would gain an acceleration and increases its speed.

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3 years ago

In an electromagnetics lab, you are studying two coils which have a mutual inductance of M=300 mH. Suppose that the current in t

Firdavs [7]

Answer:

Explanation:

Given that,

The mutual inductance of the two coils is

M = 300mH = 300 × 10^-3 H

M = 0.3 H

Current increase in the coil from 2.8A to 10A

∆I = I_2 - I_1 = 10 - 2.8

∆I = 7.2 A

Within the time 300ms

t = 300ms = 300 × 10^-3

t = 0.3s

Second Coil resistance

R_2 = 0.4 ohms

We want to find the current in the second coil,

The same induced EMF is in both coils, so let find the EMF,

From faradays law

ε = Mdi/dt

ε = M•∆I / ∆t

ε = 0.3 × 7.2 / 0.3

ε = 7.2 Volts

Now, this is the voltage across both coils,

Applying ohms law to the second coil, V=IR

ε = I_2•R_2

0.72 = I_2 • 0.4

I_2 = 0.72 / 0.4

I_2 = 1.8 Amps

The current in the second coil is 1.8A

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3 years ago

What two types of motion are the same in which they both are under the influence of gravity?

DochEvi [55]

Answer:

Orbit and Gravity

Explanation:

May I have brainliest please I would appreciate it! Have a great day!

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3 years ago

A bicyclist rides 1.86 km due east, while the resistive force from the air has a magnitude of 5.12 N and points due west. The ri

Llana [10]

Answer:

-19.0 kJ

Explanation:

Let's keep in mind that the direction of the resistive force is always opposite to the displacement of the bicyclist.

- In the first part of the ride:

Displacement: d = 1.86 km = 1860 m

Resistive force: F = 5.12 N

Angle between the direction of the force and the displacement: $\theta=180^{\circ}$

So, the work done by the resistive force is

$W=Fdcos \theta =(5.12 N)(1860 m)(cos 180^{\circ})=-9523 J$

- Similarly, in the second part of the ride:

Displacement: d = 1.86 km = 1860 m

Resistive force: F = 5.12 N

Angle between the direction of the force and the displacement: $\theta=180^{\circ}$

So, the work done by the resistive force is

$W=Fdcos \theta =(5.12 N)(1860 m)(cos 180^{\circ})=-9523 J$

Therefore, the total work done by the resistive force during the round trip is

$W=-9523 J+(-9523 J)=-19046 J=-19.0 kJ$

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4 years ago

What is the S.I unit of weight​

What is the S.I unit of weight