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DanielleElmas [232]
3 years ago
6

True False: Marke each statement as true or false.

Physics
1 answer:
Semmy [17]3 years ago
5 0

Answer:

1) true 2) true 3) true 4) true 5) false 6) false

Explanation:

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A book is sitting on a table. jackie is pushing the book with a force of 9 N to the right. if the force of friction is 4 N to th
laila [671]

Answer:

1

Explanation:

4+5 =9

5n to the right

4 0
3 years ago
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Two tuning forks are played at the same time. One has a frequency of 176 Hz and the other is 178 Hz. How many beats per second a
Anna [14]

Answer:

There is 2 beats per second.

Explanation:

You have to subtract them to find your answer and 178 - 176= 2

6 0
4 years ago
A solid steel sphere of density 7.86 g/cm3 and mass 1 kg spin on an axis through its center with a period of 2.3 s. given vspher
Alenkasestr [34]

<span>The solution for this problem is:</span>

density = mass / volume <span>
7860 = 1 / ((4/3) pi r^3) 
r^3 = 1 / (7860 * 4/3*pi) 
r = (1 / (7860 * 4/3*pi))^(1/3)</span>

= 0.067 m <span>

Inertia = (2/5)mr^2</span>

= (2/5) x 1 x 0.067^2

= 0.0017956 kg-m^2 <span>

1/2.3 = 0.4348 rev/s 

0.4348 x 2pi = 2.732 rad/s 

Angular momentum = Inertia x rad/s 

0.0017956 x 2.732 = 0.00490557 kg m^2/s</span>

4 0
3 years ago
Please help correct answering get 20 points (physical science btw )
Zinaida [17]

Answer:

Acceleration = 3.67 m/s²

Explanation:

In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.

Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.

Mathematically, acceleration is given by the equation;

Acceleration (a) = \frac{final \; velocity  -  initial \; velocity}{time}

Given the following data;

Initial velocity, u = 5 m/s

Final velocity, v = 27

Time, t = 6

To find the acceleration;

Acceleration = (v - u)/t

Acceleration = (27 - 5)/6

Acceleration = 22/6

Acceleration = 3.67 m/s²

6 0
3 years ago
What is the effect on current through a circuit of steady resistance when the voltage is doubled?
Ket [755]
If voltage is doubled<span> then let the new </span>voltage<span> be such that . ... Thus, the </span>current<span> flowing </span>through<span>the </span>circuit<span> will be </span>doubled<span> if </span>voltage<span> applied across the </span>circuit<span> is </span>doubled<span>.</span>
5 0
3 years ago
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