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Marina86 [1]
3 years ago
11

Please provide the steps

Physics
1 answer:
olga nikolaevna [1]3 years ago
7 0

Answer:

a) 0.27×10^{6} N/C

Explanation:

join this wats up group to get step by step answer from trusted experts for free just scan it

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In t-ball, young players use a bat to hit a stationary ball off a stand. The 140 g ball has about the same mass as a baseball, b
Talja [164]

Answer:

a) a_{ball} = 6000\,\frac{m}{s^{2}}, b) F = 840\,N

Explanation:

a) The physical system for the ball is modelled after the Impulse Theorem. The Impulse to accelerate the ball is:

Imp =m_{ball}\cdot v_{f}

Imp = (0.14\,kg)\cdot (12\,\frac{m}{s})\\Imp = 1.68\,N\cdot s

The acceleration of the ball is derived as follows:

a_{ball}=\frac{Imp}{m_{ball}\cdot\Delta t}

a_{ball} = \frac{1.68\,N\cdot s}{(0.14\,kg)\cdot(2\times 10^{-3}\,s)}

a_{ball} = 6000\,\frac{m}{s^{2}}

b) The net forced is obtained by the use of the concept of force for a system with a constant mass:

F = (0.14\,kg)\cdot(6000\,\frac{m}{s^{2}} )

F = 840\,N

5 0
3 years ago
A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance?
Korvikt [17]

The total resistance is 420 ohm.

A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance  

 R= 220+ 100+ 57+ 43

    = 420 Ω

What is resistance and its types?

Resistance is a measure of the opposition to current flow in an electrical circuit also known as ohmic resistance or electrical resistance. Ohms are measured as resistance, symbolized by the Greek letter omega (Ω). The ratio of the applied voltage to the current through the material is then known as resistance.

What causes resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance.

Learn more about resistance:

brainly.com/question/17563681

#SPJ4

8 0
2 years ago
A rope attached to a load of 175 kg bricks Ilifts the bricks with a steady acceleration of 0.12.m/s^2 straight up. What is the t
andrew-mc [135]

Answer:

Tension, T = 1736 N

Explanation:

It is given that,

Mass of bricks, m = 175 kg

A rope is attached to a load of 175 kg bricks lifts the bricks with a steady acceleration of 0.12 m/s² in vertically upwards direction. let T is the tension in the rope. Using second equation of motion as :

T - mg = ma

T = ma + mg

T = m(a + g)

T = 175 kg ( 0.12 m/s² + 9.8 m/s² )

T = 1736 N

Hence, the tension in the wire is 1736 N.

4 0
3 years ago
Read 2 more answers
Deena made a chart to summarize features of a velocity vs. time graph for objects with constant acceleration and objects with co
Irina-Kira [14]
The error is:
"<span>Find acceleration by finding the area of the rectangle above the line"

The acceleration of any body is the rate of change of velocity of that body. If the motion of the object being considered is plotted on a graph, with the velocity on the y-axis and the time on the x-axis, this ratio will be equivalent to the slope of the graph, not the area above the line.</span>
5 0
3 years ago
Read 2 more answers
[01.02]
julia-pushkina [17]
That information describes the plane's speed. 
If he had also told them what direction they were flying, then
they would have been able to put the two pieces of information
together, and they would know the plane's velocity.
6 0
4 years ago
Read 2 more answers
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