Answer:
Positive.
Explanation:
As a consequence of the photoelectric effect, electrons that will get hit by sufficiently energetic photons will abandon the metal surfaces exposed to bright sunlight. This decreases the negative charge of the surface, thus causing it to develop a positive net charge.
Answer:
4.5 km / 450 m
Explanation:
1 hour = 9 km
or, 60 min = 9km
or, 60/2 min = 9/2 km
■ 30 min = 4.5 km
heart plzz and brainliest answer as well
The recoils is caused by the gun trying to balance out the momentum of the bullet and the gas being discharged. The gas helps balance out the momentum of the bullet a little, but the recoil is still needed for the complete balance. This need for balance is proved by Newtons third law.
The formula for finding the velocity of recoil is as follows:
(Weight of Bullet * Velocity of Bullet + Weight of Gases * Velocity of Gases) / (7000 * Weight of Gun)
<span>Hope this helped!</span>
After fertilization in the fallopian tube, It will take 6-12 days for the zygote to travel before arriving at the uterus.
<h3>What is a zygote?</h3>
A zygote is, generally speaking, a cell created by the fusion of two gametes; the growing person is created from such a cell.
It takes the zygote around 6–12 days following fertilization in the fallopian tube for the fertilized egg to travel to the uterus and attach to the uterus, a process known as implantation.
Hence It will take 6-12 days for the zygote to travel before arriving at the uterus.
To learn more about the zygote refer;
brainly.com/question/465851
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