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Tanya [424]
2 years ago
14

Baseball Games

Mathematics
1 answer:
vladimir1956 [14]2 years ago
7 0
I think it’s y 12 and x 5
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I need help is due in 20 minute
AfilCa [17]
A is 5 , b is 1 , c is 4 , d is 3, and E is 2
7 0
3 years ago
A 30-N stone is dropped from a height of 10 m and strikes the ground with a speed of 13 m/s.
Anon25 [30]

Answer:

4.1 N

Step-by-step explanation:

We can solve this problem by using considerations about energy.

At the moment the stone is dropped, it has only gravitational potential energy:

PE=mgh

where

mg=30 N is the weight of the stone

h = 10 m is the initial height of the stone

As the stone falls, part of this energy is converted into kinetic energy, while part into thermal energy due to the presence of the air friction, acting opposite to the motion of the stone:

KE+E_t = \frac{1}{2}mv^2 + E_t

where:

m=\frac{mg}{g}=\frac{30}{9.8}=3.06 kg is the mass

v = 13 m/s is the final speed of the stone

E_t is the thermal energy

The thermal energy is actually equal to the work done by the air friction on the stone:

E_t=W=Fh

where

F is the average force of friction

h = 10 m

Since the total energy must be conserved, we can combine the three equations, so we find:

mgh=\frac{1}{2}mv^2+Fh

And solving for F, we find the average force of air friction:

F=\frac{mgh-0.5mv^2}{h}=\frac{(30)(10)-0.5(3.06)(13)^2}{10}=4.1 N

3 0
2 years ago
PLEASE HELP WILL GIVE BRAINLY IF U HELP ME
konstantin123 [22]

Answer:

D

Step-by-step explanation:

8 0
2 years ago
Please help find area !
11111nata11111 [884]

Answer:

33.32

Step-by-step explanation:

<h2><u>can use cross multiplication </u></h2>

20 : 34

19.6 : x

20x = 19.6 * 34

20x = 666.4

x= 666.4/20

x=33.32

<u>area = 33.32 </u>

4 0
3 years ago
Find the quotient of 3493 and 32
Nimfa-mama [501]
109.15 here's the andwer
3 0
3 years ago
Read 2 more answers
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