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3 years ago

5. Did objects have to touch to interact? What causes this?

Physics

2 answers:

dimulka [17.4K]3 years ago

6 0

Answer:

★ For example, a useful analogy for explaining the Earth's gravity force is that the Earth can pull on objects without touching them just like a magnet can affect other objects without touching them. In Addition, the main notion to convey here is that forces can act at a distance with no perceivable substance in between.

Explanation:

Hope you have a great day :)

djverab [1.8K]3 years ago

5 0

Answer/Explanation

A useful analogy for explaining the Earth's gravity force is that the Earth can pull on objects without touching them just like a magnet can affect other objects without touching them. The main notion to convey here is that forces can act at a distance with no perceivable substance in between.

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A motorcycle is following a car that is traveling at a constant speed on a straight highway. Initially, the car and the motorcyc

Artist 52 [7]

Answer:

(a) 3.807 s

(b) 145.581 m

Explanation:

Let Δt = t2 - t1 be the time it takes from the moment when the motorcycle starts to accelerate until it catches up with the car. We know that before the acceleration, both vehicles are travelling at a constant speed. So they would maintain a distance of 58 m prior to the acceleration.

The distance traveled by car after Δt (seconds) at $v_c = 23m/s$ speed is

$s_c = \Delta t v_c = 23\Delta t$

The distance traveled by the motorcycle after Δt (seconds) at $m_m = 23 m/s$ speed and acceleration of a = 8 m/s2 is

$s_m = \Delta t v_m + a\Delta t^2/2$

$s_m = 23\Delta t + 8\Delta t^2/2 = 23 \Delta t + 4 \Delta t^2$

We know that the motorcycle catches up to the car after Δt, so it must have covered the distance that the car travels, plus their initial distance:

$s_m = s_c + 58$

$23 \Delta t + 4 \Delta t^2 = 23\Delta t + 58$

$4 \Delta t^2 = 58$

$\Delta t^2 = 14.5$

$\Delta t = \sqrt{14.5} = 3.807s$

(b)

$s_m = 23 \Delta t + 4 \Delta t^2$

$s_m = 23*3.807 + 58 = 145.581 m$

5 0

3 years ago

The term used to describe the quantity of matter that a body possesses is:

barxatty [35]

The term used to describe the quantity of matter that a body possesses is mass.

7 0

3 years ago

Fill in the blank with the appropriate numbers for both electrons and bonds(considering that single bonds are counted as one, do

tekilochka [14]

Answer:

1.Fluorine is having 7 number of electrons and 1 makes bond.

Electronic configuration - 1S² 2S² 2P⁵

1 electron need to get in stable states 2P⁶.

2.Oxygen is having 6 balance electron and 2 makes bonds.

Electronic configuration - 1S² 2S² 2P⁴

2 electron need to get in stable states 2P⁶.

3.Nitrogen is having 5 balance electron and 3 makes bonds.

Electronic configuration - 1S² 2S² 2P³

3 electron need to get in stable states 2P⁶.

4. Carbon having 4 balance electron and 4 makes bonds.

Electronic configuration - 1S² 2S² 2P²

4 electron need to get in stable states 2P⁶.

3 0

3 years ago

A very long solenoid with a circular cross section and radius r1= 1.30 cm with ns= 260 turns/cm lies inside a short coil of radi

allochka39001 [22]

Answer:

0.00851 volts

Explanation:

radius r1= 1.30 cm with ns= 260 turns/cm

radius r2= 4.60 cm and Nc= 23 turns

constant rate from zero to Is= 1.90 A

time interval of 88.0 ms

Area of the solenoid

$A_1=\pi*r_1^2$

$=\pi*0.013^2$

$A_1=5.31*10^-^4 m^2$

Mututal Inductance

M=uo*n*N*A1

$M=(4\pi*10^-^7)*23*(260*10^2)*(5.31*10^-^4)$

$M=3.99*10^-^4 H$

EMF induced in the outer coil

E=M(dIs/dt)

$E=(3.99*10^-^4)*(1.9/88*10^-^3)$

$E=0.00861 Volts$

5 0

3 years ago

If a space ship traveling at 1000 miles per hour enters an area free of gravitational forces, its engine must run at some minimu

valentina_108 [34]

That is false, if there are no forces acting upon it then its momentum will never die off there for unless a gravitational force acted upon it it will travel at 1000 MPH forever

4 0

3 years ago