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jeyben [28]
4 years ago
11

The center of mass of a 0.3 kg (non-uniform) meter stick is located at its 46-cm mark. What is the magnitude of the torque (in N

m) due to gravity if it is supported at the 25-cm mark? (Use g = 9.79 m/s2)
Suppose that a meter stick is balanced at its center(50 cm mark). A 0.27 kg mass is then positioned at the 20 cm mark. At what cm mark must a 0.30 kg mass be placed to balance the 0.27 kg mass?
Physics
1 answer:
Sati [7]4 years ago
7 0

Answer:

15cm

Explanation:

You might be interested in
Write S if the given quantity is scalar and V if the quantity is a vector
VikaD [51]

Answer:

1. Scalar_100° Celsius

2. Vector_50 m/s²

3. Scalar_300 s

4. Vector_250 m/s, northwest

5. Vector_1m, to the right

6. Vector_10 cm, upwards

7. Scalar_525 600 mins.

8. Vector_90 km/h,east

8. Scalar_5 000 kg

10. Scalar_1.5 L

Explanation:

A scalar quantity can be defined as a quantity that has magnitude but no direction. Some examples of scalar quantities are speed, mass, temperature, volume, length, etc.

On the other hand, a vector quantity has both magnitude and direction. Some examples of vector quantities are acceleration, velocity, displacement, etc.

1. Scalar_100° Celsius (Temperature).

2. Vector_50 m/s² (Acceleration).

3. Scalar_300 s (Time).

4. Vector_250 m/s, northwest (Velocity).

5. Vector_1m, to the right (Displacement).

6. Vector_10 cm, upwards (Displacement).

7. Scalar_525 600 mins. (Time).

8. Vector_90 km/h,east (Velocity).

8. Scalar_5 000 kg (Mass).

10. Scalar_1.5 L (Volume).

6 0
3 years ago
Describe the relationship between temperature and resistance?
gavmur [86]

Answer:

A positive coefficient for a material means that its resistance increases with an increase in temperature. Pure metals typically have positive temperature coefficients of resistance. A negative coefficient for a material means that its resistance decreases with an increase in temperature.

4 0
3 years ago
Why is the absolute magnitude of some stars greater than their apparent magnitude?
Sedbober [7]
<h3>Apparent magnitude of star:</h3>

Apparent magnitude of a star is how bright it appears on earth.

<h3>Absolute magnitude of star:</h3>

Absolute magnitude of star is how bright it appear from a distance of 32.6 light years from earth.

Due to farthest distance of star from earth, it appears smaller. But when we look at it from near it will appear greater in size or magnitude. That is why, we can say that absolute magnitude of some stars is greater than their apparent magnitude.

7 0
4 years ago
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic fie
jenyasd209 [6]

Answer:

0.5 A

Explanation:

N = 20, A = 50 cm^2 = 50 x 10^-4 m^2, dB = 6 - 2 = 4 T, dt = 2 s, R = 0.4 ohm

The induced emf is given by

e = - N dФ/dt

Where, dФ/dt is the rate of change of magnetic flux.

Ф = B A

dФ/dt = A dB/dt

so,

e = 20 x 50 x 10^-4 x 4 / 2 = 0.2 V

negative sign shows the direction of magnetic field.

induced current, i = induced emf / resistance = 0.2 / 0.4 = 0.5 A

5 0
3 years ago
PLEASE HELP!!
natali 33 [55]

Answer:

biosphere and geosphere

Explanation:

8 0
3 years ago
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