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denis23 [38]
1 year ago
11

A proton is projected in the positive x direction into a region of a uniform electric field →E =(-6.00 × 10⁵) i^ N/C at t=0 . Th

e proton travels 7.00 cm as it comes to rest. Determine (b) its initial speed, and
Physics
1 answer:
Step2247 [10]1 year ago
3 0

Answer:

The initial speed of the proton that is projected in the positive x direction into a region of a uniform electric field is 2.84×〖10〗^6  m/s

Explanation:

The equation of motion expresses the speed of an object with initial velocity <em>u</em>, final velocity <em>v</em>, and distance<em> s</em>, as;

v^2= u^2+2 a.s

Making u the subject of the formula,

u^2= -2 a.s

Given that:

a=5.76×〖10〗^13 m/s^2

s =7.00cm or 0.07m

Inserting values,

u^2= -2 ×(-5.76×〖10〗^13  m/s^2)×0.07m

u^2=8.06×〖10〗^12 m^2/s^2

Therefore,

u= √8.06×〖10〗^12 m^2/s^2

u=2.84×〖10〗^6  m/s

Therefore, the initial speed of the proton is 2.84×〖10〗^6  m/s

To learn more about speed of an proton with initial velocity <em>u</em>, final velocity <em>v</em>, and distance <em>a</em>.<em> </em>click on brainly.com/question/14892278

#SPJ4

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A 500-kilogram sports car accelerates uniformly from rest, reaching a speed of 30 meters per second in 6 seconds. During the 6 s
AlekseyPX

Answer:

90 m

Explanation:

Given that

Mass of the car, m = 500 kg

Initial speed of the car, u = 0 m/s

Final speed of the car, v = 30 m/s

Time taken to travel, t = 6 s

average speed v = (30 + 0) / 2 = 15

We are going to be using the most very basic equations to solve this.

speed can be defined as the ratio of distance with respect to time.

v = d/t, Where

v = speed.

d = distance travelled and

t = time taken

if we invert this, we can get that

d = v.t

distance is multiplication of speed and time. We will be using the average speed we calculated above, so

Distance travelled in 6 s,

d = 15 * 6

d = 90 m.

therefore, the distance travelled by the car in this 6 s is 90 m

4 0
3 years ago
It requires 2,500 joules to raise a certain amount of water (c = 4.186 J/g C) from 20 C to 60 C
Ksivusya [100]

The mass of the water is 14.9 g

Explanation:

When a certain amount of a susbtance is heated, the temperature of the substance increases according to the equation

Q=mC_s \Delta T

where

Q is the amount of energy supplied to the substance

m is the mass of the substance

C_s is its specific heat capacity

\Delta T is the change in temperature

In this problem, we have:

Q = 2500 J of energy supplied to the water

C_s = 4.186 J/gC is the specific heat capacity of water

\Delta T=60 C - 20 C = 40^{\circ}C is the change in temperature of the water

Therefore we can solve for m to find the mass of the water:

m=\frac{Q}{C_s \Delta T}=\frac{2500}{(4.186)(40)}=14.9 g

Learn more about specific heat capacity:

brainly.com/question/3032746

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3 years ago
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Answer:

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Explanation:

5 0
3 years ago
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A circuit contains four capacitors in parallel (10 F, 3 F, 7 F, and 1 F). What is the equivalent capacitance of this circuit?
Oxana [17]

The equivalent capacitance (C_{eq}) of an electrical circuit containing four capacitors which are connected in parallel is equal to: A. 21 F.

<h3>The types of circuit.</h3>

Basically, the components of an electrical circuit can be connected or arranged in two forms and these are;

  • Series circuit
  • Parallel circuit

<h3>What is a parallel circuit?</h3>

A parallel circuit can be defined as an electrical circuit with the same potential difference (voltage) across its terminals. This ultimately implies that, the equivalent capacitance (C_{eq}) of two (2) capacitors which are connected in parallel is equal to the sum of the individual (each) capacitances.

Mathematically, the equivalent capacitance (C_{eq}) of an electrical circuit containing four capacitors which are connected in parallel is given by this formula:

Ceq = C₁ + C₂ + C₃ + C₄

Substituting the given parameters into the formula, we have;

Ceq = 10 F + 3 F + 7 F + 1 F

Equivalent capacitance, Ceq = 21 F.

Read more equivalent capacitance here: brainly.com/question/27548736

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3 0
2 years ago
After hearing about an accident on his normal route, Mr. Gujral checks for alternate routes to get to work. What type of circuit
shtirl [24]

Answer:

C

Explanation:

a parallel circuit because there is more than one path

3 0
3 years ago
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