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Vera_Pavlovna [14]
3 years ago
15

Describe the difference between contact forces and field forces.

Physics
1 answer:
Salsk061 [2.6K]3 years ago
8 0
Contact forces has to be touching for it to be an actual force. A field force does not have to be touching but it does have to be acting on particles at different positions in a space.
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Which characteristics describe whether a cell contains a nucleus?.
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the above picture might help

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A material through which a current does not move easily is a(n) _____.
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3 years ago
Calculate the frequency of the wave shown below.
jenyasd209 [6]

\color{skyblue}{ \underline{  \frak { \: option \: ( \: c \: )  =  2 \: hertz   ✓}}}

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5 0
2 years ago
M
Zigmanuir [339]

Answer:

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i’m too lazy but trust

6 0
2 years ago
A baseball is hit with a bat. The direction of the ball is completely reversed and its speed is doubled. If the actual contact w
alexdok [17]
Before the impact, let the velocity of the baseball was v m/s.

After being hit by the bat its velocity is -2v
So, change in velocity, Deltav=v-(-2v)=3v
Acceleration is defined as the rate of change in velocity, i.e. actual change in velocity divided by the time taken to change it. Time taken to change velocity is the time of actual contact of the bat and ball, i.e. 0.31 s.

a=(Deltav)/(Deltat)
=(3v)/0.37
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So, the ratio of acceleration of the baseball to its original velocity is 9.7.
8 0
4 years ago
Read 2 more answers
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