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padilas [110]
2 years ago
7

What molecule determines the characteristics a child will inherit from its parents?

Physics
1 answer:
Korvikt [17]2 years ago
8 0

Answer:

A molecule called DNA (deoxyribonucleic acid) is passed from adult organisms to their offspring during reproduction. This molecule containsthe instructions for an organism to develop, grow, survive and reproduce.

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A man pushes on a trunk with a force of 250 newtons. The trunk does not move. How much positive work is done on the trunk?
Digiron [165]

Answer:

F is 250 N

d is 0 m

F x d

=250 x 0

=0

The answer is 0.0 J.

3 0
3 years ago
What is the total energy equation?
netineya [11]
The total energy equation would be Kinetic energy+Potential energy
6 0
3 years ago
a ball is thrown inclined in to the air with a initial velocity of u. if it reaches the maximum height in 6 seconds , find the r
olga55 [171]

Answer:

11:1

Explanation:

At constant acceleration, an object's position is:

y = y₀ + v₀ t + ½ at²

Given y₀ = 0, v₀ = u, and a = -g:

y = u t − ½g t²

After 6 seconds, the ball reaches the maximum height (v = 0).

v = at + v₀

0 = (-g)(6) + u

u = 6g

Substituting:

y = 6g t − ½g t²

The displacement between t=0 and t=1 is:

Δy = [ 6g (1) − ½g (1)² ] − [ 6g (0) − ½g (0)² ]

Δy = 6g − ½g

Δy = 5½g

The displacement between t=6 and t=7 is:

Δy = [ 6g (7) − ½g (7)² ] − [ 6g (6) − ½g (6)² ]

Δy = (42g − 24½g) − (36g − 18g)

Δy = 17½g − 18g

Δy = -½g

So the ratio of the distances traveled is:

(5½g) / (½g)

11 / 1

The ratio is 11:1.

8 0
3 years ago
In which of these cases is a waiter doing work on the object
Gnom [1K]
Section 2 is right,, i think. good luck
8 0
2 years ago
A boy is pulling a cart by a force of 100N. The frictional force experienced by the cart is 20N. The force causing the motion of
Serga [27]

Answer:

3 is right i guss look : 100N-20N=80N

4 0
2 years ago
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