Hand grip test an example of an isometric muscle contraction.
Isometric(increased pressure but no shortening)
Explanation:
- Isometric contraction, is one in which the muscle is activated, but instead of being allowed to lengthen or shorten, it is held at a constant length.
- An isometric exercise is a form of exercise involving the static contraction of a muscle without any visible movement in the angle of the joint.
- Isometric exercises are contractions of a particular muscle or group of muscles. During isometric exercises, the muscle doesn't noticeably change length and the affected joint doesn't move. Isometric exercises help maintain strength. They can also build strength, but not effectively.
- Isometric exercise is also known as static strength training. (Examples include the plank and side bridge as well as the wall sit and many yoga poses such as chair and tree poses).
D, as he is testing which type of fertiliser is the best, and hence it should be the only changed variable. Everything else should remain the same.
WHEN AUTO MOBILE MAKERS SAY THAT THEIR CARS ARE MORE POWERFUL IT MEANS AS IN TORQUE
Answer:
Explanation:
A charge Q will create an electric field in the space surrounding it. The strength of an electric field, E in a location in space can be determined by placing a test charge, q in the space and measuring the force (F) which is exerted upon it. The electric field strength is then defined as the amount of force per unit of charge on the test charge.
E = F/q
The electric force, F depends upon the following as described by Coulomb's law:
F = kQq/d2
Here, Q might be the source charge and q might be the test charge. Therefore,
E = k × Q/d2
Answer:
No machine
Explanation:
Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work). The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent.