The volume of Ampicillin IM q8h to be administered per dose is 1.5 mL when the order is to give 600 mg of it from a concentration of 400 mg per mL prepared by the dilution of 2 g in 4.8 mL of sterile water.
1. The information we know
2. We need to find:
The volume of Ampicillin in mL per dose
3. Calculation of the Ampicillin's volume to be administered
We can calculate the volume of Ampicillin as follows:
Therefore, we need to administer 1.5 mL of Ampicillin per dose.
Find more about doses here:
I hope it helps you!
Answer:
1.5 ml
Explanation:
The nurse is to administer 600 mg of Ampicillin IM q8h
the reconstitute yield 400 mg per mL
400 mg is in 1 ml
600 mg will be (600 mg × 1 ml) / 400 mg = 1.5 ml
Answer:
a)
b)
Explanation:
Given:
The distance between two speakers (d) = 0.932 m
The distance of the microphone from the midpoint = 2.83 m
Thus, distance of microphone from the nearest speaker (L) = 2.83 - (0.932/2) = 2.364 m
also, the distance of the microphone from the farther speaker (L') = 2.83 + (0.932/2) = 3.296 m
Now,
The path difference is calculated as
L' - L = d = 0.932 m
Now,for a maxima to be produced at the microphone, the waves must constructively interfere.
for this to happen the path difference should be integral multiple of the wavelength.
thus,
hence, the largest wavelength will be for n = 1,
therefore,
0.932 = 1 × λ
or
λ = 0.932 m
now, the velocity of sound is given as c = 343 m/s
thus, the frequency will be
on substituting the values, we get
now, the 2nd largest wavelength will be for n = 2
0.932 = 2 × λ
or
λ = 0.466
thus, the frequency will be
hence, these are the lowest first two frequencies.
think the sound frequencies that dogs can
hear compare to the frequencies that humans
can hear?
Dogs can hear sounds at higher frequencies than humans. The range of sound frequencies that dogs can hear is approximately 40 Hz to 60,000 Hz, while the range for humans is 20 Hz to 20,000 Hz. This means that dogs can hear ultrasonic sounds that are beyond the range of human hearing.
In terms of physics, sound is a vibration that travels through a transmission medium like a gas, liquid, or solid as an acoustic wave.
Sound is the reception of these waves and the brain's perception of them in terms of human physiology and psychology. Dogs have the ability to hear ultrasonic sounds that are audible only to them.
Learn more about sound on:
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The average momentum of the bird (in unit vector notation) is (0.1842i + 0.1842j) kgm/s.
Since the unladen swallow that weighs 0.03 kg flies straight northeast (that is at a bearing of 45°) a distance of 125 km in 4.0 hours.
Its position vector after 4.0 hours is d = (125kmcos45)i + (125kmsin45)j = (125000 × 1/√2)i + (125000 × 1/√2)j
= (62500√2)i + (62500√2)j.
If the initial position of the swallow is d' = 0i + 0j, then its total displacement after 4 hours is, D = d - d'
= (62500√2)i + (625000√2)j - (0i + 0j)
= (62500√2)i + (62500√2)j m
The unladen swallow's average velocity, v = D/t where
So, v = [(62500√2)i + (62500√2)j m]/14400 s = (88388.35)i/14400 + (88388.35)j /1440
= 6.14i + 6.14j m/s
The average momentum of the unladen swallow is p = mv where
So, p = mv
p = 0.03 kg × (6.14i + 6.14j m/s)
p = (0.1842i + 0.1842j) kgm/s
So, the average momentum of the bird (in unit vector notation) is (0.1842i + 0.1842j) kgm/s.
Learn more about average momentum here:
Answer:
The average momentum of the bird is 0.26 kgm/s
Explanation:
The formula to be used here is that of momentum which is
momentum (in kgm/s) = mass (in kg) × velocity (in m/s)
The velocity of the bird is
velocity (in m/s) = distance (in meter) ÷ time (in seconds)
distance in meters = 125km × 1000 = 125,000 m
time in seconds = 4 hrs × 60 × 60 = 14,400 secs
velocity = 125000/14400
velocity = 8.68 m/s
momentum (p) = 0.03 × 8.68
p = 0.26 kgm/s
The average momentum of the bird is 0.26 kgm/s
Explanation:
It is given that,
Mass of the passenger, m = 75 kg
Acceleration of the rocket,
(a) The horizontal component of the force the seat exerts against his body is given by using Newton's second law of motion as :
F = m a
F = 3675 N
Ratio,
So, the ratio between the horizontal force and the weight is 5 : 1.
(b) The magnitude of total force the seat exerts against his body is F' i.e.
F' = 3747.7 N
The direction of force is calculated as :
Hence, this is the required solution.
The horizontal component of the force the seat exerts against the passenger's body is 3675 N. The ratio of this force to the passenger's weight is 5. The total force the seat exerts has a magnitude of 3793 N.
(a) To calculate the horizontal component of the force the seat exerts against the passenger's body, we can use Newton's second law, which states that force is equal to mass times acceleration. In this case, the mass of the passenger is 75.0 kg and the acceleration of the rocket sled is 49.0 m/s2. So the force exerted by the seat is:
Force = mass * acceleration
Force = 75.0 kg * 49.0 m/s2
Force = 3675 N
Now let's compare this force to the passenger's weight. The weight of an object is given by the formula:
Weight = mass * gravitational acceleration
Weight = 75.0 kg * 9.8 m/s2
Weight = 735 N
To find the ratio, we divide the force exerted by the seat by the weight of the passenger:
Ratio = Force / Weight
Ratio = 3675 N / 735 N
Ratio = 5
(b) The total force the seat exerts against the passenger's body has both a horizontal and vertical component. The direction of the total force is the same as the direction of the acceleration of the rocket sled. The magnitude of the total force can be found using the Pythagorean theorem:
Total Force = √(horizontal component2 + vertical component2)
Total Force = √(36752 + 7352)
Total Force = 3793 N
#SPJ11
A. 2000 J
B. 75,000 J
C. 120,000 J
D. 300,000 J
The electrical energy used by a 400 W toaster that is operating for 5 minutes will be 120,000 J.Option C is correct.
The rate of the work done is called the power output. It is denoted by P.Its unit of a watt. It is the ratio of the work done or the enrgy to the time period.
The given data in the problem is;
E is the electrical energy
P is the power output = 400 W
t is the time period = 5 minutes
The power output is given as;
Hence the electrical energy used by a 400 W toaster that is operating for 5 minutes will be 120,000 J.Option C is correct.
To learn more about the power output refer to the link;
Answer:
The answer is C. 120,000 J.
Explanation:
Answer: positive
Explanation:
Gravity can be defined as the force with which the body is attracted towards the center of the earth, or towards any other body. If the force acting on the body is in the direction of displacement then the word done by the applicable force is positive. This causes the free fall of the ball under the influence of gravity is also positive.