Harriet is told by her doctor that her heart rate is 70.0 beats per minute. If Harriet's average blood flow in the aorta during systole is 1.5*10^ -2 m/s , what is the wavelength of the waves of blood in Harriet's aorta, created by her beating heart?

12.9 mm

Explanation:

From v = fλ where v = speed of wave = blood flow rate = 1.5 × 10⁻² m/s and f = frequency of wave = heart rate = 70 beats per minute = 70/60 beats per second and λ = wavelength of waves in Harriet's aorta.

λ = v/f = 1.5 × 10⁻² m/s ÷ 70/60 beats per second

  = 6 × 1.5 × 10⁻²/7  

  = 1.29 × 10⁻² m

  = 12.9 mm

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.