Answer:
The acceleration of the object is
Explanation:
Given:
Initial velocity of object = 200 feet/second
Final velocity of object = 50 feet/second
Time of travel = 5 seconds
To calculate acceleration of the object we will find the rate of change of velocity with respect to time.
So, acceleration is given by:
where represents final velocity, represents initial velocity and is time of travel.
Plugging in values to evaluate acceleration.
The acceleration of the object is (Answer). The negative sign shows the object is slowing down.
Answer:
8.9*10^6 V/m
Explanation:
The expression for electric field strength E is given as
where V= voltage
d= distance of separation
Given data
substituting our given data into the electric field strength formula we have
First we can calculate the average speed v in km/h by the equation v=s/t where s is the distance traveled and t is the time:
First we turn time into seconds and divide by 3600 to get time t in hours is:
t=13*3600 s + 4*60 s + 58 s= 47098 s and that is:
t=47098s/3600s=13.08278 hours
So v=1633.8/13.08278=124.88 km/h
To get speed in m/s we simply turn kilometers into meters and hours into seconds:
s=1633.8 km *1000 = 1633800 m
t=13*3600s + 4*60 s + 58 s=46800 s + 240 s + 58 s=47098 s
v=s/t=1633800/47098=34.67 m/s
So average speed in km/h is v=124.88 km/h and in m/s is v= 34.67 m/s.
Answer:
Explanation:
given,
mass of neutron = 1.675 × 10⁻²⁷ kg
1 kg = 5.58 × 10³⁵ eV/c²
a) mass of proton = 1.675 × 10⁻²⁷ × 5.58 × 10³⁵ = 9.34 × 10⁸ eV/c²
b) mass of electron = 9.109 x 10⁻³¹ × 5.58 × 10³⁵ = 5.08 × 10⁵eV/c²
c) mass of hydrogen = 1.675 × 10⁻²⁷ × 5.58 × 10³⁵ = 9.34 × 10⁸ eV/c²