Newton's first law says the cart should keep going if there's no force acting on it to slow it down. But it slows down and stops. Is there any force acting on it ? You bet ! There's friction in the wheels, and a little bit of air resistance too.
All BUT one is a function of the cell wall. That is___ A) provides support
B) provides protection
C) transfers genetic materials
D) regulates the passage of materials
Water can be used to create electricity. this type of energy is called _____. nuclear power hydroelectric power electrolysis currents
B) hydroelectric power
Water can be used to create electricity. This type of energy is called hydroelectric power. Hydroelectric power plants harness the energy of moving water to turn a turbine, which then generates electricity. Hydroelectric power is a renewable energy source that has been used for centuries, and it is still a popular source of electricity today.
Which of these shows unbalanced forces at work on an object? A. an ice skater turning as he skates around an ice rink B. a bicycle chained to a bike rack at school C. a car driving at a constant 25 miles per hour on a straight street D. a water skier pulled by a boat at a constant 30 mph
An ice skater turning as he skates around an ice rink - shows unbalanced forces at work on an object. Hence, option (A) is correct.What is force?
The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
A spring balance can be used to calculate the Force. Newton is the SI unit of force.
Unbalanced forces are those acting on a body when the net force acting on the body is greater than zero. The body alters its state of motion when unbalanced forces act on it.
When an ice skater turning as he skates around an ice rink, his direction of motion changes. Hence, It shows unbalanced forces at work on an object.
Learn more about force here:
Long ago, it was believed that maggots came from meat. In the late 1600s, Francesco Redi hypothesized that maggots came from flies rather than from meat. Which of these experimental designs could be used to test Redi's hypothesis? A.) an experiment using covered, unrefrigerated meat
B.) an experiment using uncovered, unrefrigerated meat
C.) an experiment using flies under a bell jar
D.) both A and B
i think its a and b