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3 years ago

A cell converts What energy

Physics

1 answer:

SOVA2 [1]3 years ago

5 0

Please give me the answer choices

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You lift a bowling ball with your hand, accelerating it upward. What are the forces on the ball and on what objects are they exe

Snowcat [4.5K]

Answer:

Explanation:

When we lift a ball with the hand the forces experienced by the ball is

Force of your hand

Gravitational force

Resultant of these forces gives acceleration to the ball

While your hand exerts a force on the ball, the ball will also exert a force of equal magnitude but opposite in direction to the force by hand.

All these forces is exerted on the ball, hand or on the earth.

7 0

4 years ago

The speed of light in a vacuum is approximately 2.99 × 108 m/s, and the speed of light through a piece of glass is approximately

scoundrel [369]

Answer: Have A Blessed Day!

Explanation:

Thanks for the information mate!

(Also can I have brainliest i'm so close to next rank! Thanks and have a good life!)

3 0

3 years ago

Phenolphthalein turns pink in salt water

OLEGan [10]

That statement is true

7 0

3 years ago

At the instant a traffic light turns green, a car starts with a constant acceleration of 1.3 m/s2. At the same instant a truck,

Bas_tet [7]

Answer:

(a) Distance traveled = 75.3846 m

(b) Velocity of car at that instant will be 14 m/sec

Explanation:

We have given acceleration of the car $a=1.3m/sec^2$

Initial velocity of the cart u = 0 m/sec

(a) According to second equation of motion we know that $s=ut+\frac{1}{2}at^2$

So distance traveled by car $s_c=0\times t+\frac{1}{2}\times 1.3t^2=0.65t^2$

As the truck is moving with constant speed

So distance traveled by truck $s_t=ut=7t$

As the truck overtakes the car

So $s_c=s_t$

$0.65t^2=7t$

$t=10.769sec$

So distance traveled $s_c=s_t=7\times 10.769=75.3846m$

(b) From second equation of motion we know that v = u+at

So v = 0+1.3×10.769 = 14 m /sec

7 0

3 years ago

Calculate the relativistic speed of a particle at a time 6 s after it star t = 0 s . The mass of the particle is 6 × 10-2 kg and

Mars2501 [29]

Answer:

The relativistic speed of a particle is $0.0333\times10^{-5}c$

Explanation:

Given that,

Time = 6 sec

Force = 1

Mass of the particle $m=6\times10^{-2}\ kg$

We need to calculate the acceleration

Using formula of acceleration

$a = \dfrac{F}{m}$

Put the value into the formula

$a=\dfrac{1}{6\times10^{-2}}$

$a=16.67\ m/s^2$

We need to calculate the velocity after 6 sec

Using equation of motion

$v = u+at$

Put the value

$v=0+16.67\times6$

$v=100\ m/s$

The velocity in term of c

$v=\dfrac{100c}{3\times10^{8}}$

$v=3.333\times10^{-7}c$

$v=0.0333\times10^{-5}c$

Hence, The relativistic speed of a particle is $0.0333\times10^{-5}c$

6 0

3 years ago