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GuDViN [60]
3 years ago
10

A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to

rise?
A:The molecules in the water move closer together.
B:The molecules in the thermometer’s liquid spread apart.
C:The kinetic energy of the water molecules decreases.
D:The kinetic energy of the thermometer’s liquid molecules decreases.
Physics
1 answer:
klemol [59]3 years ago
3 0
<span>The molecules in the thermometer’s liquid spread apart.  (B)</span>
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1 (3 points)
trapecia [35]

Answer:

300

Explanation:

15x20

5 0
3 years ago
A 7.94-nC charge is located 1.77 m from a 4.14-nC point charge. (a) Find the magnitude of the electrostatic force that one charg
STatiana [176]

Answer:

F=94.32*10⁻⁹N  , The force F is repusilve because both charges have the same sign (+)

Explanation:

Two point charges (q₁, q₂) separated by a distance (d) exert a mutual force (F) whose magnitude is determined by the following formula:  

F=K*q₁*q₂/d² Formula (1)  

F: Electric force in Newtons (N)

K : Coulomb constant in N*m²/C²

q₁,q₂:Charges in Coulombs (C)  

d: distance between the charges in meters(m)

Equivalence  

1nC= 10⁻⁹C

Data

K=8.99x10⁹N*m²/C²

q₁ = 7.94-nC= 7.94*10⁻⁹C

q₂= 4.14-nC=  4.14 *10⁻⁹C

d= 1.77 m

Magnitude of the electrostatic force that one charge exerts on the other

We apply formula (1):

F=8.99x10^{9} *\frac{7.94*10^{-9} *4.14 *10^{-9} }{1.77^{2} }

F=94.32*10⁻⁹N  , The force F is repusilve because both charges have the same sign (+)

7 0
3 years ago
Static electricity is the study of?
Elanso [62]
The study of static electricity is electrostatics
4 0
2 years ago
A positively charged particle initially at rest on the ground accelerated upward to 100m/s in 2.00s. If the particle has a charg
VashaNatasha [74]

Answer:

Explanation:

From the question we are told that

     The initial velocity is  u  =  100 m/s

       The time taken is  t = 2.0 s

       The charge to mass ratio is  Q/m  =  0.100 C/kg

       

Generally the acceleration is mathematically evaluated as

              a  =   \frac{u}{t }

substituting values  

               a =   \frac{100}{2}

                a =  50 \ m/s^2

The electric field is mathematical represented as

             E = \frac{(a+g)}{Q/m}

substituting values

              E = \frac{(50+9.8)}{0.100}

              E = 598 \ N/C

4 0
2 years ago
CAN SOMEONE PLEASE ANSWER NUMBER 8 AND 9 FOR ME WITH AN EXPLANATION HURRY I HAVE LIMITED TIME PLEASE!!!
Aneli [31]

Answer:

D because the molecules become solid so dont move as much  9 A because pressure would build up in the tank

Explanation:

6 0
3 years ago
Read 2 more answers
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