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lapo4ka [179]
3 years ago
10

Are electric files lines due to an isolated positive point charge emanate radially away from the charge?

Physics
1 answer:
lara31 [8.8K]3 years ago
4 0

Answer:

6

Explanation:

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Which health related fitness component is tested in the curl-up test
Aleksandr-060686 [28]

Answer:

Curl up test.

Explanation:

The curl up test is done to check the strength of the abdomen muscles and the stability of the core muscles. The strength of the core muscles determines the stability of the body.

The curl up test is done to test the abdomen strength and endurance and the strength of the back muscles.

The test requires the following materials: A flat cushioned surface(clean) and a measuring strip

  • The measuring strip is placed on the mat under the students legs so that their fingertips are just resting on the nearest edge of the measuring strip. The feet cannot be held or rest against an object. Keeping heels in contact with the mat, the student curls up slowly, sliding their fingers across the measuring strip until the fingertips reach the other side, then curls back down until their head touches the mat. There should be 20 curl-ups per minute
8 0
3 years ago
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 12.0 m/s toward the east and the
Daniel [21]

Answer: 25.7m/s

Explanation: the cars have equal masses so we only consider their velocities,

The cars traveled together at 65° north of east this is with a velocity equal to the resultant velocity,

Using the force diagram as shown below;

Tan 65° = Vn/Ve

Ve is velocity of the car traveling east

Vn is velocity of car traveling north

Tan 65° = V2/12

2.144 = V2/12

V2 = 12 * 2.144

V2 = 25.7 m/s

5 0
3 years ago
What is the momentum of a 0.122 kg baseball traveling at 39 m/s
Artyom0805 [142]

2

For the one I can do to make it to get my stuff ready for my

3 0
3 years ago
Read 2 more answers
What is the lowest level of sound that can be detected by human hearing? 0 Hz 10 Hz 20 Hz 100 Hz
maxonik [38]
These choices are not "levels" of sound.  They're frequencies of sound.

The lower limit of audible frequency is usually considered to be 20 Hz.
But there are some people with ears that can hear 10 Hz, and others ...
particularly the elderly ... who can't hear anything below 100 Hz.

The question is a rather poor one.
8 0
4 years ago
Read 2 more answers
Mickey, a daredevil mouse of mass 0.0227 kg,0.0227 kg, is attempting to become the world's first "mouse cannonball." He is loade
Viefleur [7K]

Answer:

1.65 m

Explanation:

Energy from spring, E_{s} is given by

E_{s}=0.5kx^{2} where k is spring constant and x is the compression distance

E_{s}=0.5*51.1*0.129^{2}= 0.425178

E_{s}=0.425 J

Kinetic energy, KE at the highest point is given by

KE=0.5mv^{2} where m is mass and v is velocity

KE=0.5*0.0227*2.27= 0.058485 J

Potential energy, PE of spring is given by

PE=mgh where g is gravitational constant and h is maximum height reached by the mouse

PE=0.0227*9.81= 0.222687h

According to the principle of conservation of energy, the potential energy of the compressed spring is equal to the potential and kinetic energy of the mouse at the maximum high point.

E_{s}=PE+KE

0.425=0.222687h+0.058485

h=(0.425-0.058485)/ 0.222687=1.646671 m

h=1.65 m

7 0
3 years ago
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