The time taken is approximately 26 minutes
Explanation:
The motion of the body in this problem is a uniform motion (= at constant velocity), therefore we can use the following equation:
where
v is the speed
d is the distance covered
t is the time taken
In this problem, we have
v = 75 km/h is the speed
d = 32 km is the distance to be covered
Solving for t, we find the time needed:
Converting into minutes,
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Answer:
40 units
Explanation:
200 divided evenly by 5 is 40. Therefore there are 40 units
Answer:
Explanation:
Rydberg's formula is used to describe the wavelengths of the spectral lines of chemical elements similar to hydrogen, that is, with only one electron being affected by the effective nuclear charge. In this formula we can find the rydberg constant, knowing the wavelength emitted in the transcision between two energy states, we can have a value of the constant.
Where it is the wavelength of the light emitted, R is the Rydberg constant, Z is the atomic number of the element and are the states where .
In this case we have Z=1 for hydrogen, solving for R:
This value is quite close to the theoretical value of the constant
Given:
Force, F = 30 N
Acceleration, a = 2 m/s^2
Let's determine the mass of the object.
To find the mass(m) of the object, apply the formula below:
Rewrite the formula for mass(m):
Where:
F = 30 N
a = 2 m/s^2
Thus, we have:
Therefore, the mass of the object is 15 kg
ANSWER:
15 kg
Answer:
Explanation:
current I = 14 x 10⁻³ A
distance of current d = 2.2 x 10⁻² m
Magnetic field B due to a long straight current carrying wire
B = (μ₀ /4π) x (2 I / d )
= 10⁻⁷ x 2 x 14 x 10⁻³ / 2.2 x 10⁻²
= 12.72 x 10⁻⁸ T .