A sprinter accelerates from rest to 10.0 m/s in 1.30s. what is the acceleration in m/s2?

If an individual exercised by riding a bike with a friend for 30 minutes on a flat trail and they were engaged in a conversation

Anna35 [415]

Answer:

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Explanation:

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7 0

3 years ago

Science question please help me

S_A_V [24]

Light year is light in a year so 4 light years are 4 Earth years

5 0

3 years ago

What are the sources of air pollution that originate from smelting plants and paint?

neonofarm [45]

Answer:

e e e e e e e e e e i have to write and i dont know what i could write

8 0

4 years ago

If the electric charge on the object is tripled while its mass remains the same, find the direction and magnitude of its acceler

maksim [4K]

F = qE = mg

E = mg/q = 0.017*9.81('-3.1x10^-6) = 5.38x10^4 = -53,800 N/C

E' = 0.5E = -26,900N/C

2q -mg= ma, Answer is 9.81 m/s^2 and it's positive because the force is upward.

8 0

3 years ago

A block of mass m attached to a horizontally mounted spring with spring constant ???? undergoes simple harmonic motion on a fric

Firdavs [7]

Answer:

(E) It would increase by a factor of 2.

Explanation:

Maximum speed (v) is given by:

$v = \omega *A$

Where ω is the angular frequency and A is the amplitude.

The angular frequency of a spring-mass system is given by:

$\omega = \sqrt{\frac{k}{m}}$

Where k is the spring constant and m is the mass of the block attached to the spring.

Therefore, maximum speed can be written as:

$v= A\sqrt{\frac{k}{m}}\\$

Since mass and amplitude are constant values, a relationship between maximum velocity and spring constant can be defined as:

$v =C \sqrt{k}$

There is a linear relationship between maximum velocity and the square root of the spring constant. Therefore if the spring constant is increased by a factor of 4, the velocity is increased by a factor of the square root of 4, which is 2.

The answer is (E) It would increase by a factor of 2.

8 0

3 years ago