Answer:
An object's acceleration is the rate its velocity (speed and direction) changes. Therefore, an object can accelerate even if its speed is constant - if its direction changes.
Explanation:
 
        
             
        
        
        
Answer:
(a) 91 kg (2 s.f.)    (b) 22 m
Explanation:
Since it is stated that a constant horizontal force is applied to the block of ice, we know that the block of ice travels with a constant acceleration and but not with a constant velocity.
(a) 
                                                    
      Subsequently,
                                                   
*Note that the equations used above assume constant acceleration is being applied to the system. However, in the case of non-uniform motion, these equations will no longer be valid and in turn, calculus will be used to analyze such motions.
(b) To find the final velocity of the ice block at the end of the first 5 seconds,
                                                     
      According to Newton's First Law which states objects will remain at rest 
      or in uniform motion (moving at constant velocity) unless acted upon by 
      an external force. Hence, the block of ice by the end of the first 5 
      seconds, experiences no acceleration (a = 0) but travels with a constant 
      velocity of 4.4  .
.
                                                     
       Therefore, the ice block traveled 22 m in the next 5 seconds after the 
       worker stops pushing it.
 
        
             
        
        
        
               ( 3 yr) · (186,282.397 mile/s) · (86,400 s/day) · (365 day/yr)
           =  (3 · 186,282.397 · 86,400 · 365)  mile
           =      1.762380502 x 10¹³  miles
           =      1.8 x 10¹³  miles    (rounded to the nearest trillion miles)
        
             
        
        
        
The magnetic field direction and direction of induced current in a wire are related by the right hand grip rule. Since the magnetic field was upwards, the thumb points upwards and the fingers curl around it. When viewed from above, it is seen as a current flowing in the counter clockwise direction.
        
             
        
        
        
It has to be the last one because whenever lights are turned on it decreases because all lights are on at the same time. It's good to just have one light on. It doesn't use as much electricity.