Answer:

Explanation:

Mass of a truck ( m ) = 3000 kg
Velocity of a truck ( v ) = 10 m / s
<u>Finding</u><u> </u><u>the</u><u> </u><u>momentum</u> :



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Answer: it is D. it is the only possible answer. use the process of elimination. which answers make sense?
The atom´s mass number is the "number of neutrons and number of protons (option B) in an atomic nucleus. It might determine the atomic mass os atoms. Because neutrons and protons are baryons, the mass number A is identical to mass number B as of the nucleus, atom or iron.
Answer:
Normal force = 8.75 N
Explanation:
given,
frictional force between the steel spatula and the Teflon frying pan=0.350 N
coefficient of friction between material =0.04
normal force = ?
using formula,
Frictional force = coefficient of friction × normal force


Normal force = 8.75 N
Answer:
The emf, electric field and the current in the wire are 10 V, 3.57 V/m and 1.43 A.
Explanation:
Given that,
Resistance = 7 ohms
Length = 2.8 m
Time t =0.2
We need to calculate the change in magnetic flux
Using formula of induced emf

Put the value into the formula


We need to calculate the electric field in the wire
Using formula of electric field



We need to calculate the current in the wire,
Using formula of ohm's law


Put the value into the formula


Hence, The emf, electric field and the current in the wire are 10 V, 3.57 V/m and 1.43 A.