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ddd [48]
3 years ago
10

A car driving on the turnpike accelerates uniformly in the positive x direction from 80 ft/s (54.5 mph) to 103 ft/s (70.2 mph) i

n 3.10s. What is the x- component of the car's acceleration ?
Physics
1 answer:
Oxana [17]3 years ago
4 0

Acceleration = (change in speed) / (time for the change)

Change in speed = (ending speed) - (starting speed)

                            = (103 fps) - (80 fps) = 23 ft/sec .

Acceleration = (23 ft/sec) / (3.1 sec) = 7.42 ft/sec² .

Since the acceleration was uniform in the x-direction,
its component in the x-direction is 7.42 ft/sec², and it
has no other component.

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Spring constant here for 22 cm spring is 50 N per metre 840 if you stretch the spring and when is measured again is 32 cm long w
seraphim [82]
K= fx => f = k/x => 50N/100cm / 10 cm = 5/10= 0.5 N
3 0
2 years ago
Electoral punishment is a potential remedy to which of the following problems?
Harman [31]

Answer:

Election manipulation, vote rigging

Explanation:

Electoral fraud is sometimes known as election fraud or election manipulation or vote rigging is  illegal in the process of election.

 The electoral fraud changes from country to country .

The election process is conducted and supervised by the electoral bodies.

The manipulation of electoral processes and outcomes are also referred to as electoral malpractice.

In India a huge number of electoral malpractices are occurs.

It will happen by elections or candidates with strong criminal background are fighting the elections.  

4 0
3 years ago
The position of an ant and a spider in a room are A(2,3,5) and B(6,0,8) determine the distance
marta [7]

Answer:

|d|  =  \sqrt{ {(x_{2} -x_{1})}^{2} + {(y_{2} -y_{1})}^{2} + {(z_{2} -z_{1})}^{2}}  \\  =  \sqrt{ {(6 - 2)}^{2} + {(3 - 0)}^{2} +{(5 - 8)}^{2}  }  \\  =  \sqrt{16 + 9 + 9}  \\   = \sqrt{34}

4 0
3 years ago
In which direction does the electric field point at a position directly north of a positive charge?
navik [9.2K]

Answer:

B. South

Explanation:

An electric field can be defined as the amount of electric force per unit charge. The direction of the electric field can be determined by the motion of a positive test charge under the electric force.

The direction of electric field is radially outward for a positive charge and radially inward for a negative charge. Thus, for the electric field points toward SOUTH at a position directly south of a positive charge.

5 0
3 years ago
Read 2 more answers
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a v
n200080 [17]

Answer:

1404 N .

Explanation:

Force = rate of change of momentum

d/dt ( mv₁ - mv₂ )

If v₂ = - v₁

rate of change of momentum

= d/dt ( mv₁+mv₁ )

=2x v₁ dm / dt ( Here velocity of water  v₁ throughout is constant )

Force = 2 xv₁ dm / dt

Given ,

v₁ = 18 m/s

dm / dt = rate of flow of mass of water

= 39 kg / s

Putting the values in the equation above

Force = 2xv₁ dm / dt

= 2x18 x 39

= 1404 N .

5 0
3 years ago
Read 2 more answers
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