Answer:
Explanation:
The correct match is given below:
1. Communicable by direct acquisition via vertical transmission. C. <em>Treponema palladium</em> (syphilis).
2. Communicable by indirect transmission via air droplets. B. Tuberculosis
3. Communicable by direct transmission via a biological vector. F. Malaria
4. Non-communicable. A. <em>Clostridium tetani </em>(tetanus).
5. Communicable by indirect transmission via fomites. D. <em>Staphylococcus aureus</em>.
Hi there!
Question - What changes igneous or sedimentary rock into metamorphic rock?
Elite Answer - A heat and pressure
Why - Due to immense and heat and pressure it can change igneous or sedimentary rock into metamorphic rock.
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Answer
Option C - Skeletal Muscles
Explanation
Antagonistic pairs are the muscles that are functionally opposite, if one produces flexion, then the other's primary action is an extension. Skeletal muscles work in pairs to move a bone so that the muscles can function properly. They contract the bone making nerves deliver a message to the brain. For example. Biceps and triceps. The lower arm is moved upwards when the biceps muscle contracts and the triceps muscle is relaxed and vice versa.
Answer:
-110 N
Explanation:
Una carga de 50 N unida a un resorte que cuelga verticalmente estira el resorte 5cm. El resorte se coloca ahora horizontalmente sobre una masa y se estira 11cm. ¿Qué fuerza se requiere para estirar ese resorte en esa cantidad?
Solution:
La constante de resorte (k) es la relación entre la fuerza (F) y la extensión (d) como resultado de la fuerza aplicada, por lo tanto:
k = F / d
Dado que F = 50 N, d = 5 cm = 0.05 m. Por eso:
k = F / d = 50 N / 0.05 = 1000 N / m
La fuerza (F) requerida para provocar un estiramiento de 11 cm se da como:
F = -kx
x = 11 cm = 0,11 m. Por eso:
F = -kx = -1000 * 0,11 = -110 N
El signo negativo significa que el objeto se tira hacia el resorte.
