Answer:
density ρ = mass / volume
ρ = 100 g / 11.2 cm^3 = 8.93 g/cm^3
Probably copper because a value given for Cu is 8.89 g/cm^3
Answer:
F = 11046 N
Explanation:
given,
mass of the baseball (m)= 145 g = 0.145 Kg
horizontal speed(u) = -36 m/s
ball hit is straight back(v) = 47.8 m/s
time of contact = ?
using formula of impulse
Impulse = change in momentum
I = m v - m u
I = 0.145 x (47.8 - (-36))
I = 0.145 x (83.8)
I = 12.151 kg.m/s
we also know
I = F x t
now,
F x t = 12.151 kg.m/s
F x 1.1 ms = 12.151
F = 11046 N
Answer:
Inducted Magnetic field will be toward from you
Inducted current direction will be counter clockwise.
Explanation:
Lenz's law states that the direction of the current induced in a wire by a changing magnetic field is such that the magnetic field created by the induced current opposes the initial changing magnetic field.
So if the field begins to decrease, the induced magnetic field would try to stop this, so its direction will be the same as the magnetic field, toward from you.
This induced magnetic field is produced by the current in the wire. If the inducted magnetic field will be toward you, the right hand rule says that the direction from the inducted current will be counter clockwise.
Answer:
Explanation:
Investigators thought this meant that oxygen was eight times more massive than hydrogen. They presumed the chem-ical form-ula for water to be H-O
Hope this helped!!! .