A go-cart is rolling down a hill at 15m/s. If it has 85J of kinetic energy. what is the mass of the go-cart?

What will happen if we heat metal for long time

viva [34]

Answer:

the metal will melt

Explanation:

from solid to liquid

6 0

3 years ago

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An orange is a common fruit that grows on citrus trees. What part of the citrus tree's flower does the orange develop from?

jekas [21]

Citrus × sinensis, orange, orange or sweet orange, is a fruit tree of the genus Citrus, which is part of the family of rutáceas. It is a medium-sized tree -even in optimum growing conditions up to 13 m in height-, perennial, with a large, round or pyramidal crown, with oval leaves between 7 and 10 cm wide and often stipulated and branches sometimes with large spines (more than 10 cm).

Its white flowers, called azahar, are born isolated or in clusters and are extremely fragrant. Its fruit is sweet orange.

Answer:
azahar

4 0

3 years ago

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A proton with a velocity in the positive x-direction enters a region where there is a uniform magnetic field B in the positive y

Gennadij [26K]

Answer:

Negative z-direction.

Explanation:

We need to determine the direction of the magnetic force. Since the velocity of the proton is in the positive x direction, and the magnetic field is in the positive y direction, we know by the vectorial formula $F=q(v\times B)$ (or, alternatively, with the <em>left hand rule</em>) that the magnetic force points in the positive z-direction (also taking into account that <u>the charge is positive</u>), so the electric field should be in the negative z-direction to balance it.