All categories

2 years ago

Please I need help with this :(

Physics

1 answer:

Ann [662]2 years ago

3 0

three charged particals are located at the corners of an equil triangle shown in the figure showing let (q 2.20 Uc) and L 0.650

You might be interested in

The speed of the fastest pitched baseball was 45 m/s, and the ball’s mass was 145 g. How fast would a 59 g ball have to travel t

dsp73

59 g ball will travel upto 110 m/s

A. 110 m/s

Explanation:

Given datas are as follows

Speed of the pitched baseball = 45 meters/second

Mass of the baseball = 145 gram

Mass of the assumed ball = 59 gram

Both the balls travelled in the same momentum

Formula to find the momentum of an object is,

Momentum (p) = Mass (m) × velocity (v) (unit is kilogram meter per second (kg-m/s))

Momentum = 145 × 45 kilogram meter per second

Momentum = 6525 kilogram meter per second

Now calculate the speed of a ball with mass 59 g to have the momentum of about 6525 kilogram meter per second

Speed = momentum ÷ mass (meters per second)

Speed = 6525 ÷ 59 (meters per second)

Speed = 110 meters per second

Therefore a 59 gram (g) ball have to travel at a speed of 110 meters per second to have the momentum of 6525 kilogram-meter per second.

7 0

3 years ago

How much fuel should you collect before starting a fire?

juin [17]

Answer:

Collect more fuel than you think you can use; you may need more than you estimate. Pile fine twigs, grass, or bark shavings loosely as a base.

6 0

2 years ago

A 1000-kilogram truck accelerates uniformly from rest, reaching a speed of 50 meters per second in 10 seconds. During the 10 sec

Nata [24]

Answer:

250 m

Explanation:

1. First, we have to calculate the acceleration:

$\boxed{\mathsf{v=v_o+a\cdot t}}$

where:

v = present velocity

vo = initial velocity

a = acceleration

t = time

2. Let us use given information and substitute in the expression above. Hence:

$\mathsf{50=0+a\cdot10}\\\\\mathsf{50=10\cdot a}\\\\\mathsf{a=\dfrac{50}{10}}\\\\\therefore \boxed{\mathsf{a=5\,m/s^2}}}$

3. Now we can calculate traveled distance with Torricelli's equation:

$\boxed{\mathsf{v^2=v_o^2+2\cdot a \cdot d}}$

where:

v = present velocity

vo = initial velocity

a = accelerarion

d = distance

4. So, we get:

$\mathsf{50^2=0^2+2\cdot 5 \cdot d}\\\\\mathsf{2500=10\cdot d}\\\\\mathsf{d=\dfrac{2500}{10}}\\\\\therefore \boxed{\mathsf{d=250\,m}}$

Conclusion: during 10 seconds the truck has traveled a distance of 250 m.

Have a nice day! : )

8 0

3 years ago

A disk rotates freely on a vertical axis with an angular velocity of 50 rpm . An identical disk rotates above it in the same dir

True [87]

Answer:

Final angular velocity is 35rpm

Explanation:

Angular velocity is given by the equation:

I1w1i + I2w2i = I1w1f -I2w2f

But the two disks are identical, so Ii =I2

wf can be calculated using

wf = w1i - w2i/2

Given: w1i =50rpm w2i= 30rpm

wf= (50 + 20) / 2

wf= 70/2 = 35rpm

5 0

3 years ago

Gold is called noble gas why

slamgirl [31]

This is what i found.
Gold is a noble element because "in chemistry, the noblemetals are metals that are resistant to corrosion and oxidation in moist air (unlike most base metals)."

3 0

4 years ago

Read 2 more answers