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guapka [62]
3 years ago
9

Explain why the open umbrella hit the ground after the closed umbrella 10pts

Physics
1 answer:
Marat540 [252]3 years ago
6 0

Answer:

Hindi ko po maintindihan

Explanation:

sorry po

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Can the enzyme DNA polymerase be used to break down lactose
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Short answer: No

DNA polymerase is an enzyme responsible for copying DNA strands. Lactase is an enzyme responsible for breaking down lactose.
6 0
3 years ago
a uniform electric field E=15 N/C points downwards. A particle with charge q=-0.15 C is placed in the electric field. What is th
Alex17521 [72]

Answer:

2.25 N upwards

Explanation:

Answer:

800 N/C to the right

Explanation:

The equation that relates force on a charge, electric field and charge is

F=qE

where

F is the force acting on the charge

q is the charge

E is the electric field

In this problem, we have

E=15 N/C is the electric field

q=-0.15 C is the charge

Substituting into the formula, we find the force

F=(-0.15 C)(15 N/C)=-2.25 N

Concerning the direction:

- The electric field and the force have same directions if the charge is positive

- The electric field and the force have opposite directions if the charge is negative

Here the charge is negative, so the electric field has opposite direction to the force: therefore, it must be upwards.

3 0
3 years ago
At a rock concert, a dB meter registered 131 dB when placed 2.6 m in front of a loudspeaker on the stage. The intensity of the r
Pavlova-9 [17]

Answer:

Explanation:

A) 131 dB = 10*log(I / 1e-12W/m²)

where I is the intensity at 2.6 m away.

13.1 = log(I / 1e-12W/m²

1.25e13= I / 1e-12W/m²

I = 1.25 x10^1W/m²

power = intensity * area

P = I * A = 12.5W/m² * 4π(2.6m)² =1061 W ◄

B) 86 dB = 10*log(I / 1e-12W/m²)

8.6 = log(I / 1e-12W/m²)

3.98e8 = I / 1e-12W/m²

I = 3.98e-4 W/m²

area A = P / I = 1061W / 3.98e-4W/m² = 2.66e6 m²

A = 4πr²

2.66e6 m² = 4πr²

r = 14.5m ◄

6 0
3 years ago
Astronomers have found water on mars.
vodomira [7]

The thin atmosphere of Mars is thought to be due to the planet's lack of a magnetic field, which has allowed the Solar wind to blow away much of the gas the planet once had. Venus, despite still having a thick atmosphere of CO2, surprisingly has a similar problem

4 0
2 years ago
A bird flies from the ground to a height of 200 m if the bird has a mass of 1.5 kg how much gravitational potential energy does
Serjik [45]
Gravitational potential energy is equal to (mgh) so 1.5•9.8•200=2940
Or C
3 0
3 years ago
Read 2 more answers
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