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iVinArrow [24]
3 years ago
8

Order the sequence of ideas that led to Marie Curie’s discovery of radioactive elements. Number the events in chronological orde

r starting with the oldest. Rutherford experimented with particles given off by radioactive elements. Dalton developed the theory that all matter is made of atoms. James Chadwick discovered the neutron.
Physics
1 answer:
Marysya12 [62]3 years ago
6 0

Answer:

2 1 3

Explanation:

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Describe the motion of an object as it accelerates. IN YOUR OWN WORD!! ASAP
Pachacha [2.7K]

Answer:

The aceleration of an object is in the direction of the net force. If you push or pull an object in a particular direction, it accelerates in that direction. The aceleration has a magnitude directly proportional to the magnitude of the net force.

Explanation:

Hope this helps Plz mark brainliest

5 0
3 years ago
A low C (f = 65Hz) is sounded on a piano. If the length of the piano wire is 2.0 m and its mass density is 5.0 g/m2, determine t
Pie

Answer:

338N

Explanation:

Use the formula f=\frac{\sqrt{\frac{T}{\frac{M}{L}} } }{2L}

f is the frequency, T the string tension, M the mass, and L the length

convert units to seconds, kilograms, meters

65Hz\ =\ \frac{\sqrt{\frac{T}{\frac{0.005kg}{m}}}}{2\cdot2m}

now solve for T

sqrt(T/.005) = 65*4 = 260

T = 338N

8 0
3 years ago
What would you predict would occur if you were able to
Paladinen [302]
A continually rotating magnetic field would continuously induce current, the induced current would show alternating direction
7 0
3 years ago
A drowsy cat spots a flower pot that sails first up and then down past an open window. The pot was in view for a total of 0.56 s
liberstina [14]

Answer:

h = 0.028 m

Explanation:

As we know that

d = \frac{v_2 + v_1}{2} t

here we have

1.95 = \frac{v_2 + v_1}{2}(0.56)

v_2 + v_1 = 6.96

also we know

v_2 - v_1 = at

v_2 - v_1 = (9.81)(0.56)

v_2 - v_1 = 5.49

so we have

v_2 = 6.23 m/s

v_1 = 0.74 m/s

so the height above window is given as

v_f^2 - v_i^2 = 2 a d

0.74^2 - 0 = 2(9.81)h

h = 0.028 m

4 0
4 years ago
Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec
lidiya [134]
P= mv

where p is momentum
m is mass
v is velocity

so it's given p= 100kgm/sec
v= 4m/s

so putting in the formula

100= m × 4

m = 25kg
3 0
3 years ago
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