Answer: centimeters per second (cm/s)
Explanation:
The relation between the frequency and the wavelenght is:
Velocity = wavelenght*frequency.
So in a relation of wavelenght vs frequency, we will have the relationship:
Where wavelenght is Y and frequency is X
wavelenght = velocity/frequency.
So the constant is the velocity, and we know that the units of the wavelenght is cm, the unit of frequency is Hz (or 1/s), so the units of the velocity is cm/s
Answer:
cm/s
Explanation:
λν=c where λ is the wavelength, ν is the frequency and c is the speed of light.
λ = c/v which is in cm/s/Hz
But we would use just cm! Because that's how we measure the wavelength in this example.
However, the constant is c, the speed of light, which we measure as a speed, so cm/s will do.
at a distance of 0.2m for m the equilibrium position.
Answer:
a) 12.8 N
b) 3.2 m/s²
Explanation:
I'm guessing the period is 0.5π s.
Period of a spring in simple harmonic motion is:
T = 2π √(m/k)
Given T = 0.5π and m = 2 kg:
0.5π = 2π √(2/k)
0.25 = √(2/k)
0.0625 = 2/k
k = 32
The spring constant is 32 N/m, and the maximum displacement is 0.4 m. The maximum force can be found with Hooke's law:
F = kx
F = (32 N/m) (0.4 m)
F = 12.8 N
The acceleration can be found with Newton's second law:
∑F = ma
kx = ma
(32 N/m) (0.2 m) = (2 kg) a
a = 3.2 m/s²
We don't know if the road is perfectly straight between the intersections, or if the road bends, curves, or turns between them. So we don't have enough information to calculate the displacement between them.
But we can calculate the distance the car traveled between them.
Distance = (speed) (time)
Distance = (20 m/s) (120 s)
Distance = 2,400 meters
X chromosome only
B.
Y chromosome only
C.
X and Y chromosomes
D.
egg cells do not contain sex chromosomes
A pea plant is heterozygous for height (Tt). Which allele will be carried by a pollen grain produced by the plant?
A.
T only
B.
t only
C.
T and t
D.
T or t
Which term describes the example below?
A white cat has a mother that is homozygous dominant and a father that is homozygous recessive.
A.
homozygous dominant
B.
homozygous recessive
C.
heterozygous
D.
female
E.
male
Which term describes the example below?
A rabbit’s cells have two sex chromosomes that are different.
A.
homozygous dominant
B.
homozygous recessive
C.
heterozygous
D.
female
E.
male
Which term describes the example below?
A child with no freckles has a mother who has freckles and is heterozygous and a father who has no freckles and is homozygous recessive.
A.
homozygous dominant
B.
homozygous recessive
C.
heterozygous
D.
female
E.
male
Which term describes the example below?
A child with a widow’s peak has a mother who is homozygous dominant for a widow’s peak and a father who is homozygous dominant for a widow’s peak.
A.
homozygous dominant
B.
homozygous recessive
C.
heterozygous
D.
female
E.
male
Which term describes the example below?
A puppy’s cells have two sex chromosomes that are the same.
A.
homozygous dominant
B.
homozygous recessive
C.
heterozygous
D.
female
E.
male