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egoroff_w [7]
3 years ago
15

What is accelaration​

Physics
2 answers:
mezya [45]3 years ago
3 0

Answer:

it like too gain speed like a car

djverab [1.8K]3 years ago
3 0

Answer:

increase in the rate or speed of something.

Explanation:

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How much would a 70 kg student weigh on Pluto? (massPluto = 1.25 x 1022 kg, radiusPluto = 1.20 x 106 m)
mote1985 [20]

Answer: the weight would be 4.6 (I think i don’t know))

Explanation:

6 0
3 years ago
Suppose there was a star with a parallax angle of 1 arcsecond. How far away would it be? Select all that apply.
lesya692 [45]

Answer:

option E

Explanation:

given,                          

Parallax angle(d) = 1 arcsecond

using Parallax formula                  

      d = \dfrac{1}{p}

 p is the parsecs angle which is measured in 1 arcsecond

 d is the distance in parsec

now,                                            

      P = \dfrac{1}{d}

      P = \dfrac{1}{1}

      P = 1 \ parsec

we know,                                  

    1 parsec = 3.26 light year

hence, the answer will be option E

6 0
4 years ago
A student has begun training for tryouts for cross country by running a two mile loop through
Nataliya [291]

Answer:cause they running down a  steep hill

Explanation: that's a confusing question

6 0
3 years ago
A gymnast of mass 70.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume t
DiKsa [7]

Answer:

T = 686.7N

Explanation:

For this exercise we will use Newton's second law in this case there is no acceleration,

      ∑ F = ma

      T -W = 0

The gymnast's weight is

     W = mg

We clear and calculate the tension

     T = mg

     T = 70 9.81

     T = 686.7N

3 0
3 years ago
Wanda exerts a constant tension force of 12 N on an essentially massless string to keep a tennis ball (m = 60 g) attached to the
goldfiish [28.3K]

Answer:

r = 0.405m = 40.5cm

Explanation:

In order to calculate the length of the string between Wanda and the ball, you take into account that the tension force is equal to the centripetal force over the ball. So, you can use the following formula:

F_c=ma_c=m\frac{v^2}{r}       (1)

Fc: centripetal acceleration (tension force on the string) = 12N

m: mass of the ball = 60g = 0.06kg

r: length of the string = ?

v: linear speed of the ball = 9.0m/s

You solve for r in the equation (1) and replace the values of the other parameters:

r=\frac{mv^2}{F_c}=\frac{(0.06kg)(9.0m/s)^2}{12N}=0.405m

The length of the string between Wanda and the ball is 0.405m = 40.5cm

7 0
3 years ago
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