How many square meters are in a rectangular piece of carpet which measures 12.0 feet by 22.0 feet? 1 m = 39.37 in., 1 ft = 12 in
1 answer:
Answer:
Area of the rectangle will be
Explanation:
We have given sides of rectangle is 12 feet by 22 feet
We know that 1 feet = 0.3048 m
So 12 feet will be equal to 12×0.3048 = 3.657 m
And 22 feet will be equal to 22×0.3048 = 6.705 m
We have to find the area of the rectangle in square meter
Area of rectangle is equal to multiplication of sides of the rectangle
So area A
You might be interested in
Answer:
24 cm
Explanation:
Given:
Mass of proton = 1.67 × 10⁻²⁷ Kg
kinetic energy = 2.5 × 10⁻¹³ J
magnetic field in the cyclotron, B = 0.75 T
Now,
Kinetic energy = = 2.5 × 10⁻¹³ J
where, v is the velocity of the electron
or
= 2.5 × 10⁻¹³ J
or
v² = 2.99 × 10¹⁴
or
v = 1.73 × 10⁷ m/s
also,
centripetal force = magnetic force
or
= qvB
q is the charge of the electron
r is the radius of the dipole magnets
on substituting the respective values, we get
= 1.6 × 10⁻¹⁹ × 0.75
or
r = 0.2408 m ≈ 24 cm
Hence, the correct answer is 24 cm
Answer:
d= 1650 km.
Explanation:
- Assuming that sound waves travel along a straight line at a constant speed of 346 m/s, we can find the time needed for the sound to travel the distance of 1.9 m between the astronauts, just applying the definition of average velocity, as follows:
- The electromagnetic waves travel in free space at the same speed of light in vacuum ( since light is a electromagnetic wave indeed), i.e., 3*10⁸ m/s.
- Applying the same formula than in (1) we can solve for the distance d, as follows: