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vfiekz [6]
2 years ago
14

My brainly isn’t working. When i have a new notification, and I click on it, it takes me to a pop-up saying “Oops.. something’s

wrong, try again” anyone know how to fix this, or report a problem?
please help !
Physics
1 answer:
motikmotik2 years ago
3 0

Answer:

If you remember your username and password when you set up brianly. Uninstall it and then reinstall then put your information in. Then if that dont work send them a message telling them what's going on

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Consider the following situation, in which a compass is influenced by not only the force of Earth's magnetic field, but also an
DochEvi [55]

Answer:

1) The angle of deflection will be less than 45° ( C )

2)  The angle of deflection will be greater than 45° but less than 90° ( E )

Explanation:

1) Assuming that the force applied  has a direction which is perpendicular to the Earth's magnetic field

∴ Fearth > Fapplied   hence the angle of deflection will be < 45°

2) when the Fearth < Fapplied

the angle of deflection will be :   > 45°  but  < 90°

6 0
3 years ago
What is crop rotation?​
klasskru [66]

Answer: the system of varying successive crops in a definite order on the same ground, especially to avoid depleting the soil and to control weeds, diseases, and pests.

Explanation:

8 0
2 years ago
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. How long was
RSB [31]
2.6 seconds (If acceleration due to gravity is taken 10 m/s^2) or 2.65  (If acceleration due to gravity is taken 9.8 m/s^2)
6 0
3 years ago
A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 32 meters above the ground. This takes 8 minutes
Vadim26 [7]

Answer:

W=-1881.6J

Explanation:

we have that the change in the mass is

\frac{dm}{dt}=-c\\m(0)=60kg\\m(8)=60kg-6kg=54kg

by solving the differential equation and applying the initial conditions we have

\int dm=-c\int dt\\m=-ct+d\\m(0)=-c(0) + d=60 \\m(8)=-8c+d=54

by solving for c and d

d=60

c=0.75

The work needed is

W = m(t) gh

by integrating we have

dW_T= gh\int dm \\\\W_T=gh\int_0^8 -0.75dt\\\\W_T=(9.8\frac{m}{s^2})(32m)(-0.75(8))=-1881.6J

hope this helps!!

4 0
2 years ago
Blank is the transfer of thermal energy by collisions between particles​
Artemon [7]
Conduction: Conduction is the transfer of thermal energy by collisions between particles in matter.
5 0
3 years ago
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