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aniked [119]
3 years ago
6

How much energy is used by a 900 w microwave that operates for 4 minutes ?

Physics
1 answer:
saveliy_v [14]3 years ago
7 0

Answer:216000 joules

Explanation:

Firstly we have to convert time from minutes to seconds

Therefore 4minutes = 60×4 =240seconds

Energy=power×time

Energy=900×240

216000joules

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An oscilloscope shows a steady sinusoidal signal of 5 Volt peak to peak, which spans 5 cm in vertical direction on the screen. B
Troyanec [42]

Answer:

it will show a continuous rise in value. The rise will be sinusoidal.

Explanation:

3 0
3 years ago
[7 pts] 1. Suppose that a car starts from rest, its engine providing an acceleration of 4 ft/s2 while air resistance provides 0.
kumpel [21]

Answer:

a) Initial Value Problem

dv/dt = 4 - 0.1v

v(0) = 0

b) solution to the IVP

v(t) = 40(1 - e^(-t/10))

c) Limiting velocity

Vo = 40 ft/s

Position of the car after 12 hours

X = 14,390 ft

Explanations:

The complete explanations of each of the sections contained in the question are in the files attached to this solution.

4 0
3 years ago
In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600m2 at an angle of 45.0°to the window surface. Ea
aliina [53]

or one hailstone we have;
Force = Mass X acceleration = 0.005kg x 9.8.} This is when the hailstone is not inclined at an angle.
When the hailstone is inclined at an angle of 45, then the component of force along the glass window will be F =0.005kg x 9.8 x sin45= 0.005kg x 9.8 x 0.707= 0.0346N.
Therefore, total force for the 500 hailstones would be 500x0.0346N=17.32N
This force is acting on an area equal to 0.600m2
Pressure = Force per unit area = 17.32N/0.600m2 = 28.9Pa

5 0
3 years ago
The current atomic model has a
Oksanka [162]
The current atomic model has a predicted area surrounding the nucleus where the electron could be located thanks to quantum physics, subatomic particles makes leaps through space, and an electron could even be a million miles from its nucleus.

So the correct option among the other answer choices are as follows: C.
3 0
3 years ago
Read 2 more answers
A car can accelerate from rest to 28 m/s and travels 280meters. How long does this acceleration take?
Reika [66]

Answer:

a=1.4m/s^2

Explanation:

From the question we are told that

Velocity v=28m/s

Distance d=280

Generally the Newtons equation for motion is mathematically given as

Acceleration

v^2=2as

a=\frac{V^2}{2s}

a=\frac{28^2}{2*280}

a=1.4m/s^2

4 0
3 years ago
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